15 Jesus therefore perceiving that they were about to come and take him by force, to make him king, withdrew again into the mountain himself alone.
16 And when evening came, his disciples went down unto the sea; 17 and they entered into a boat, and were going over the sea unto Capernaum. And it was now dark, and Jesus had not yet come to them. 18 And the sea was rising by reason of a great wind that blew. 19 When therefore they had rowed about five and twenty or thirty furlongs, they behold Jesus walking on the sea, and drawing nigh unto the boat: and they were afraid. 20 But he saith unto them, It is I; be not afraid. 21 They were willing therefore to receive him into the boat: and straightway the boat was at the land whither they were going.
22 On the morrow the multitude that stood on the other side of the sea saw that there was no other boat there, save one, and that Jesus entered not with his disciples into the boat, but [that] his disciples went away alone 23 (howbeit there came boats from Tiberias nigh unto the place where they ate the bread after the Lord had given thanks): 24 when the multitude therefore saw that Jesus was not there, neither his disciples, they themselves got into the 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.