15 Therefore when Jesus perceived that they were about to come and take Him by force to make Him king, He departed again to the mountain by Himself alone.
16 Now when evening came, His disciples went down to the sea, 17 got into the boat, and went over the sea toward Capernaum. And it was already dark, and Jesus had not come to them. 18 Then the sea arose because a great wind was blowing. 19 So when they had rowed about three or four miles, they saw Jesus walking on the sea and drawing near the boat; and they were afraid. 20 But He said to them, "It is I; do not be afraid." 21 Then they willingly received Him into the boat, and immediately the boat was at the land where they were going.
22 On the following day, when the people who were standing on the other side of the sea saw that there was no other boat there, except that one which His disciples had entered, and that Jesus had not entered the boat with His disciples, but His disciples had gone away alone-- 23 however, other boats came from Tiberias, near the place where they ate bread after the Lord had given thanks-- 24 when the people therefore saw that Jesus was not there, nor His disciples, they also got into boats and came to Capernaum, seeking Jesus.
Matthew Henry's Commentary on John 6:15-24
Commentary on John 6:15-21
(Read John 6:15-21)
Here were Christ's disciples in the way of duty, and Christ was praying for them; yet they were in distress. There may be perils and afflictions of this present time, where there is an interest in Christ. Clouds and darkness often surround the children of the light and of the day. They see Jesus walking on the sea. Even the approaches of comfort and deliverance often are so mistaken, as to become the occasions of fear. Nothing is more powerful to convince sinners than that word, "I am Jesus whom thou persecutest;" nothing more powerful to comfort saints than this, "I am Jesus whom thou lovest." If we have received Christ Jesus the Lord, though the night be dark, and the wind high, yet we may comfort ourselves, we shall be at the shore before long.
Commentary on John 6:22-27
(Read John 6:22-27)
Instead of answering the inquiry how he came there, Jesus blamed their asking. The utmost earnestness should be employed in seeking salvation, in the use of appointed means; yet it is to be sought only as the gift of the Son of man. Him the Father has sealed, proved to be God. He declared the Son of man to be the Son of God with power.