Take Heart; It Is I Leader Notes

Gospel of Mark series · Sermon 10/25/2026

Take heart; it is I

Sunday school leader notes · Mark 6:45-52

Parallel accounts: Matthew 14:22-33 · John 6:16-21

Review with the group

The Appendix lists every miracle the four Gospels record before this scene. It belongs with Unit 5, where the discussion turns to the hardened hearts.

Leader thesis

The Jesus in Mark 6 IS the Lord in Psalm 107, the full psalm for context but especially verses 23-32. He did not just find the disciples struggling in peril and save them; He is also the Lord of the storm.

Application

We do not always see it, but God always has purpose in our trials. It strengthens us and focuses glory on His and off of us.

1. Jesus went up on the mountain to pray

Mark 6:45-46 Immediately he made his disciples get into the boat and go before him to the other side, to Bethsaida, while he dismissed the crowd. And after he had taken leave of them, he went up on the mountain to pray.

Sermon questions

Q1. What can we learn about prayer from Jesus?
Leader guidance

The text gives the fact that he prayed, the place (the mountain), and the timing (after the crowd was dismissed). It does not give what he prayed or how long. Staying with those three details keeps the discussion on the text. Mark records him withdrawing to pray elsewhere too: Mark 1:35, Luke 5:16.

Q2. What does this passage teach us about God's sovereignty over circumstances we cannot control?
Leader guidance

In these two verses the text says Jesus sent the disciples ahead. The wind comes in verse 48, and Mark does not say Jesus caused it. The sovereignty point comes from reading the whole scene together, and the wider biblical through-line carries it: Psalm 107:25 (the LORD commanded and raised the stormy wind) and Mark 4:39. The Leader thesis at the top draws on Psalm 107:23-32.

Q3. How would viewing your current struggle as a "classroom" rather than a "catastrophe" change your perspective?
Leader guidance

"Classroom" is the sermon's framing. Mark uses no teaching language in 6:45-52, though 6:52 shows the episode connects to what the disciples should have learned from the loaves. This was also a specific command to these disciples at one moment, so applying it to every personal struggle leans on the wider through-line rather than on 6:45 alone: James 1:2-4, Romans 5:3-5, Hebrews 12:5-11.

Leader Response

The pattern I have been bringing up in the last several sermon outlines: Jesus doing something as an example for the disciples, then sending them out to do it themselves, bringing them back to learn from it. We have this in the traveling and preaching with the disciples, then sending them out, then they come back and tell Him about it (debrief). Related to this we have the previous storm that they woke Jesus to calm and then were possibly more afraid of Jesus than they were the storm (inferred). Now he sends them into a storm and comes out to meet them. Makes reference to the loaves and them not learning from that, still having hard hearts, which I take as unbelief. We could reference God hardening Pharaoh's heart multiple times in Exodus for the purpose of making His greatness known above the false gods. All of these are lessons.

Commentary and anchors

Text observations

  • Mark 6:45 says "his disciples"; 6:30 says "apostles." Mark gives no number, so the text doesn't say whether it is the same group or a wider one.
  • Mark 6:45 names Bethsaida as where they are heading. Mark 6:32 does not name the place they withdrew to, so the text doesn't say they are being sent back to it. Luke 9:10 names Bethsaida for the withdrawal, and John 6:17 names Capernaum as the destination.
  • The feeding ends at 6:44 and this scene begins "immediately" (6:45).
  • Mark reports no content for the prayer. He is alone on the land and they are on the sea (6:47).

Commentary

  • Matthew Henry notes that the crowd was reluctant to leave, so sending them away took time and effort. He observes that Jesus prayed often and at length despite heavy preaching work, and prayed alone as an example for private prayer. He draws comfort from Christ interceding for his people from the mountain while they are at sea. Henry on Mark 6:45-56
  • John Calvin reads "constrained" as the disciples' obedience to a command that seemed unreasonable, since Jesus stayed behind alone as night came. He holds that God often hides his reasons from us to teach us to depend on his word. Calvin says Jesus was aware of the coming storm and that his praying showed his true humanity, and he notes that solitude helps prayer without being a fixed rule. Calvin on Matthew 14:22-33; Mark 6:45-52

Leader observations

The notes on the sending, the pattern of sending and teaching, and the storm are under Unit 3.

Parallel Passages

  • Matthew 14:22-23: the same sending, and Jesus is on the mountain alone when evening comes.
  • John 6:14-17: adds why he withdrew, since the crowd meant to take him by force and make him king. John says they were crossing toward Capernaum; Mark says Bethsaida.

Sources Matthew Henry, Mark 6:45-56 · John Calvin, Matthew 14:22-33; Mark 6:45-52

2. Jesus saw they were making headway painfully

Mark 6:47-48a And when evening came, the boat was out on the sea, and he was alone on the land. And he saw that they were making headway painfully, for the wind was against them.

Sermon questions

Q1. How does knowing Jesus sees our struggles impact the way we face challenges?
Leader guidance

The text says "he saw," and it also says he did not come to them until the fourth watch (6:48), hours after evening (6:47). "He sees" and "he comes right away" are not the same thing in this passage, so hold both. Psalm 33:13-15 and Psalm 139:1-3 speak to God's sight; neither promises immediate relief.

Leader Response

Agree, but I would add he did not just see them struggling. He sent the wind. Ps 107.

Q2. What burden are you carrying today that you need to remember Jesus already sees and understands?
Leader guidance

This is personal application, so give the group room. If someone answers as if relief should be immediate, bring them back to the detail in Q1: Jesus saw, and the help came later.

Leader Response

Heb 2:18 and Heb 4:15.

Commentary and anchors

Text observations

  • The fourth watch: Mark 13:35 lists the watches as evening, midnight, cockcrow, and morning, so the fourth watch falls in roughly the 3 to 6 a.m. range. Mark 6:47 says the boat was already out on the sea at evening, so they had been rowing for many hours. Mark gives no exact length.

Commentary

  • John Gill puts the fourth watch at about three in the morning and estimates they had been about nine hours at sea, covering only some three miles. Gill on Mark 6:48
  • Matthew Henry says the wind against them was a foretaste of the hardships the disciples would meet when sent out to preach, and that Jesus was training them to endure difficulty. Henry on Mark 6:45-56
  • John Calvin says Jesus allowed them to be tossed for a time so that they would pay closer attention to the help he was bringing, and that their rowing wore their arms less than the terror wore their faith. Calvin

Leader observations

The notes on the storm and the pattern of teaching are under Unit 3.

Parallel Passages

  • Matthew 14:24: the boat is a long way from land, beaten by the waves, with the wind against them.
  • John 6:18-19: the sea rose because of a strong wind, and they had rowed about three or four miles. Neither Gospel gives a length of time.

Sources Gill, Mark 6:48 · Matthew Henry, Mark 6:45-56 · John Calvin, Matthew 14:22-33; Mark 6:45-52

3. Jesus came to them, walking on the sea

Mark 6:48b-49 And about the fourth watch of the night he came to them, walking on the sea. He meant to pass by them, but when they saw him walking on the sea they thought it was a ghost, and cried out.

Sermon questions

Q1. What does Jesus walking on the sea reveal about His authority and power?
Leader guidance

Mark does not explain what the walking reveals; he records the disciples' reaction (they thought it was a ghost and cried out). The READ passages supply the through-line: Job 9:8 and Psalm 89:9 describe the LORD's rule over the sea. Whether Mark intends that allusion is not stated, so present it as the wider biblical background. Also note the phrase the sermon question skips: "He meant to pass by them" appears only in Mark.

Q2. Is there a current trial in your life that could be a greater revelation of who Jesus is rather than merely a problem to solve?
Leader guidance

In the text the disciples experienced the trial as terror, not insight (6:49-50), and Mark says later that they did not understand (6:52). The revelation came from Jesus' coming and speaking, not from the disciples working it out. Keep that order in view when the group shares.

Commentary and anchors

Text observations

  • "He meant to pass by them" is Mark's detail alone. Similar "pass by" language describes the LORD's self-disclosure to Moses (Exodus 33:19-23, 34:6) and to Elijah (1 Kings 19:11), and Job says of God that he passes by without being seen (Job 9:11). Whether Mark has these in mind is not stated.
  • Mark 6:50 says they all saw him and were terrified, so the fear was shared by the whole group, not by one or two of them.

Commentary

  • John Gill reads "would have passed by" as Jesus appearing to go on by, as in Luke 24:28; by his course and speed it looked as if he meant to go past without a word, though that was not his real aim. Gill on Mark 6:48
  • Matthew Henry says Jesus chose to come himself rather than check the winds from where he was or send an angel. He sees the walking on the stormy sea as showing that the Lord is mightier than the floods (Psalm 93:3-4). On "pass by," he says Jesus acted as if to go on, to rouse them to call to him, and that providence sometimes seems to give us the go-by. He says the ghost fear shows how we frighten ourselves with phantoms of our own imagination. Henry on Mark 6:45-56
  • John Calvin says it was great stupidity to be alarmed at his appearance as if he were a ghost, when they were in sore need of him. Calvin

Leader observations (first read, Mark 6:48-49)

  1. Right after the feeding miracle of 5000, he has them get into a boat and go ahead. Jesus dismissed the crowd and goes up the mountain to pray.
  2. Starting to see a pattern: they were sent with no provision, then He had them help minister where there was more provision. I called it cup running over ministry. This seems to be to reinforce that they need to rely on God for provision, not their own efforts. Now he puts them on a boat, knowing a storm is about to shake them; He orchestrated the storm. See cross ref Ps 77. They had seen Him calm a storm in ch 4 but then He was with them; now they will encounter a storm and He is not in the boat with them. The pattern is place them in a situation to learn something, disciple them about it, place them again to reinforce.
  3. Immediately after the feeding.
  4. Two levels: the what He is teaching — trust only in Him, do not rely on your own self. And the how He is teaching — we see the discipleship clearly modeled.

Parallel Passages

  • Matthew 14:25-26: the fourth watch; the disciples cry out that it is a ghost and are terrified.
  • John 6:19: they see Jesus walking on the sea and drawing near to the boat, and they are frightened.
  • "He meant to pass by them" is not in Matthew or John.

Sources Gill, Mark 6:48 · Matthew Henry, Mark 6:45-56 · John Calvin, Matthew 14:22-33; Mark 6:45-52

4. Jesus spoke to them

Mark 6:50 for they all saw him and were terrified. But immediately he spoke to them and said, "Take heart; it is I. Do not be afraid."

Sermon questions

Q1. Why do you think Jesus' first response was comfort rather than correction? How can you put this example into practice?
Leader guidance

Mark 6:50 records comfort and no rebuke. Next Mark says in 6:52 that their hearts were hardened, and Jesus does correct them later in the book (Mark 8:17-21); in Matthew he rebukes Peter's little faith (Matthew 14:31). So "comfort first" is accurate for this verse without being the whole of Mark's picture. The second half is application.

Q2. How does understanding the meaning of "I AM" deepen your understanding of Jesus?
Leader guidance

The ESV's "it is I" renders the Greek egō eimi, which in this setting can be plain self-identification (they thought he was a ghost, and he says "it's me"). Some commentators hear the divine name here, and the READ passages (Exodus 3:14; Isaiah 41:4, 51:12; John 18:5-6) lean that way. The text itself says "it is I" and does not say which Mark intends, so name both readings and let the group weigh them.

Commentary and anchors

Text observations

  • Jesus speaks immediately, and what he says is a command with a reason in the scene: "Take heart," "it is I," "Do not be afraid."
  • Mark gives no rebuke at this point.
  • The same words appear in John 6:20 and Matthew 14:27.
  • Mark 5:36 has a similar command to Jairus: do not fear, only believe. Mark 14:62 has Jesus' "I am" at his trial.

Commentary

  • Matthew Henry says he quieted their fears by making himself known, that our fears are soon satisfied when mistakes about Christ are corrected, and that the disciples knew his voice as sheep know their shepherd. He reads egō eimi as the divine name given when God came to deliver Israel (Exodus 3:14), and compares John 18:6, where the same words struck down those who came to seize him. Henry on Mark 6:45-56
  • John Gill says all of them saw him, so it was no mere imagination, and that Jesus spoke at once so his voice would ease their fears. Gill on Mark 6:50
  • John Calvin says Christ is not known as a deliverer until he appears, so he speaks and bids them recognize him, and the confidence he calls for rests on his presence. Calvin adds that the storm did not stop at once, so that the disciples would be roused to desire and expect his help, and that the Lord often has good reasons for delaying a deliverance he has ready. Calvin

Leader observations (first read, Mark 6:50-51a)

  1. Similar to previous experiences (ch 4, Mark 4:35-41) they are in a dangerous situation on the sea; this time Jesus is NOT on the boat with them as He was in the other events. Jesus saw their trouble, a storm so bad they were barely making way. He did not go to them right away, He let them struggle, then came to them at the 4th watch. They were frightened when they saw him walking to them on the raging sea. He is not just walking on a calm pool of water, mind you; this is a sea with wind so bad they can barely move the boat. They are afraid and think he is a ghost, but that seems like a reasonable reaction to a man moving on a raging sea without a boat.
  2. He is teaching them, see next answer.
  3. This seems to line up with the pattern I have seen here. Jesus leads by example; in this case He had been with them last time they woke Him up and He calmed the sea, this time He was not with them. Same as them following Him to all the towns preaching, then sending them out without Him. This is how He is teaching them to rely on Him and not their own ability, and I think especially based on the Ps 107 ref He is teaching that in His sovereignty He saw them/is watching, not only watching but in sovereign control. That wind blowing has His permission to blow.
  4. Jesus' sovereignty over His called and the events happening around them.

Parallel Passages

  • Matthew 14:27: the same words. Matthew then adds Peter's request and his walk on the water (14:28-31), which Mark does not record.
  • John 6:20: the same words.

Sources Gill, Mark 6:50 · Matthew Henry, Mark 6:45-56 · John Calvin, Matthew 14:22-33; Mark 6:45-52

5. Jesus got into the boat with them

Mark 6:51-52 And he got into the boat with them, and the wind ceased. And they were utterly astounded, for they did not understand about the loaves, but their hearts were hardened.

Review with the group

Use the Appendix of every miracle the four Gospels record before this scene with these questions.

Sermon questions

Q1. What connection does Mark make between this miracle and the feeding of the five thousand?
Leader guidance

Mark states the link himself in 6:52: they did not understand about the loaves. He does not say what they should have understood. Mark returns to the loaves and the hardened hearts in Mark 8:14-21, and the three commentators read the loaves as having shown Jesus' power to help them. The timing matters too: the walking on the sea comes right after the feeding (6:45).

Leader Response

Them not understanding that Jesus can make loaves from nothing, and now not understanding He can calm the storm as easily as He can make the storm. All creation, even the corrupt and rebellious creation, must bow and kneel to the Creator King over creation. They do not understand yet who He is: Creator, King of all creation.

Q2. Why is it possible to be amazed by what Jesus does but fail to understand who He is?
Leader guidance

Mark's own answer is in 6:52: their hearts were hardened. The question frames the failure as not understanding who Jesus is; the text says "about the loaves," which Mark ties to his identity elsewhere (Mark 4:41; 8:17-21). This question opens the larger conversation on God's sovereignty and our responsibility, where commentators differ and the text does not name who hardened them. See the commentary below and the cross-references on hardening.

Commentary and anchors

Text observations

  • Jesus enters the boat and the wind stops. In the earlier storm (Mark 4:39) he rebuked the wind; here Mark records no word spoken.
  • Mark reports their astonishment. The "for" in 6:52 gives their failure to understand about the loaves as the reason; "but" then states the condition of their hearts. Mark does not say which causes which.
  • "Their hearts were hardened" is passive, and the text does not name an agent. (The Greek is peprōmenē, a perfect passive participle with "was"; the perfect describes a settled state. Check this in your interlinear.)
  • Mark uses hardness language elsewhere: Mark 3:5 (the Pharisees, with Jesus grieved) and Mark 8:17 (the disciples).
  • Matthew and John do not mention the hardness. In Matthew those in the boat worship him; in John they are glad to take him in.

Commentary

  • Matthew Henry says the wind stopped suddenly, without the formal command of Mark 4:39, and that Christ's work is always effective without always being solemn. He says their astonishment was more than fitting, and that its root was culpable: they had not considered the miracle of the loaves, which was as great a proof of power as walking on the water. He calls them strangely stupid and unthinking, hearts hardened, and says we are shocked by his present works because we do not rightly understand his earlier ones. Henry on Mark 6:45-56
  • John Gill says they had seen the loaves only the day before and had not learned from them the glory and power of Christ. He reads "hardened" (or "blinded") as not by sin, not against Christ, and not in a judicial way, but as dullness, stupidity and inattention. He adds that, even so, they needed divine illumination to behold Christ's glory. Gill on Mark 6:52
  • John Calvin renders the verse "their heart was blinded" and says the charge against them is blameworthy slowness, with the main fault being that so recent a display faded from their minds. He adds that Mark names blindness to show it is no new thing for men to have their eyes closed to God's works until they are enlightened from above, citing Deuteronomy 29:4, and that "heart" here means understanding. He treats this as a warning about the corruption of our understanding, that we may seek new eyes from the Lord. Calvin

Leader observations

First read, Mark 6:51b-52:

  1. Jesus arrives at the boat, gets in, and the wind stops; I think that "and" carries the weight that these are not a coincidence. Jesus allowed the wind to stop; Mark records they are "utterly astounded" and remembers the disbelief associated with the loaves, making the point that their hearts are hardened. The word AND: Jesus enters the boat AND the wind stopped, instead of "then" the wind stopped or "also" the wind stopped. I just mean the two things are connected; Jesus kept the wind up until He stepped into the boat. I can see a skeptic just doubting that.
  2. Jesus saw them from the shore; the wind was so strong they were barely making way in the boat, and miraculously walked out to the boat to help them.
  3. Defer to previous units.
  4. I want to spend a lot of time in the class on the hardening heart; we have already discussed before I started these answers.

Other observations:

  • Interesting to note the end of 50, "take heart," then that descriptive narrative about hardened hearts. I know the first one means do not be afraid but I think is rooted in the same problem; they are afraid because they lack trust/belief in Jesus.
  • This is a really good place to camp out and talk about God's sovereignty and our own responsibility.
  • For the last part of 52, "but their hearts were hardened," I wonder is this passive hardening due to unbelief or is it active hardening like God hardened Pharaoh's heart. It is almost unbelievable after everything they have seen in person that they still do not believe, so passively belief has not been granted, or actively kept that way, or is it more correct to say both? Does original language grammar help with this?

Cross-references on hardening (kept for the class)

Parallel Passages

  • Matthew 14:32-33: the wind ceases when they get into the boat, and those in the boat worship him as the Son of God. Mark records astonishment and hardness instead.
  • John 6:21: they are glad to take him into the boat, and the boat is immediately at the land.

Sources Matthew Henry, Mark 6:45-56 · Gill, Mark 6:52 · John Calvin, Matthew 14:22-33; Mark 6:45-52

Takeaway

The sermon's takeaway: The same Jesus who came to His disciples walking on the water went to the cross for our salvation, proving that He can be trusted in every storm we face.

"Who's Your One" question of the weekHow can we, as a group, be praying for your witness to your one?

Appendix: Miracles recorded before this scene

Review with the group (see Unit 5)

Every miracle of Jesus the four Gospels record up to and including the feeding of the five thousand, grouped by event. The order is roughly Mark's, with events found only in other Gospels placed near where they fall; the Gospels do not share one timeline.

Reason for this review

To see how ignorant they were for still not grasping who He is after seeing all these miracles. Yet we are the same or worse. None can "see" Him without their eyes being open. See Eph 1:18; 2 Cor 4:4-6.

MiracleMarkMatthewLukeJohn
Water into wine2:1-11
Official's son healed4:46-54
Unclean spirit in the synagogue1:21-284:31-37
Peter's mother-in-law1:29-318:14-154:38-39
Evening healings at the door1:32-348:16-174:40-41
Catch of fish5:1-11
Leper cleansed1:40-458:1-45:12-16
Paralytic2:1-129:1-85:17-26
Man at Bethesda5:1-15
Withered hand3:1-612:9-146:6-11
Crowds healed by the sea3:7-1212:15-166:17-19
Centurion's servant8:5-137:1-10
Widow's son at Nain7:11-17
Blind and mute demoniac12:22-23
Storm stilled4:35-418:23-278:22-25
Gerasene demoniac (Matthew has two men)5:1-208:28-348:26-39
Woman with the flow of blood5:25-349:20-228:43-48
Jairus' daughter raised5:21-24, 35-439:18-19, 23-268:40-42, 49-56
Two blind men9:27-31
Mute demoniac9:32-34
A few healed at Nazareth6:1-613:53-58
The twelve sent, casting out demons and healing6:7-1310:1-159:1-6
Feeding of the five thousand6:30-4414:13-219:10-176:1-14

Count: 19 individually recorded miracles of Jesus. The twelve's healing mission and the summary passages come on top of that. The centurion's servant and the official's son are kept separate here, though some treat them as one event.

Where the text puts the disciples

  • John 2:2, 11: at Cana, and they believed in him.
  • Luke 5:1-11: Peter, James and John are in the boat.
  • Luke 7:11: they go with him to Nain.
  • In Mark, the text puts them at 1:21-31, 4:35-41, 5:31, 5:37 and 6:41, and does not say they were present at the others (for example 1:40-45, 2:1-12, 3:1-6).