Mark

Continuing on…
Joh 6:18 The sea became rough because a strong wind was blowing.
Joh 6:19 When they had rowed about three or four miles, they saw Jesus walking on the sea and coming near the boat, and they were frightened.
Joh 6:20 But he said to them, “It is I; do not be afraid.”
Joh 6:21 Then they were glad to take him into the boat, and immediately the boat was at the land to which they were going.

This is the second of the miracles in this pericope. The first was feeding the five thousand. Now this one has Jesus walking on water and calming the storm.

The rough seas probably did not worry the disciple since many of them were experienced fishermen. But one thing did make them afraid- a man walking on the water in the middle of the night

Jesus words ‘It is I” are from the greek ‘ego eimi’ which in places refers to His divinity. In this context however I don’t think that is the case, he is simply identifying himself. ‘Do not be afraid’ is an imperative (command)- stop being afraid! It appears that John wants us to see the immediate destination of the boat as a miracle aswell.

Note- I reject the common attack on this miracle that the boat was hugging the shore, so that Jesus did not actually walk ‘on’ the water, but rather was walking ‘on’ the shoreline or coastline. I believe that Jesus did in fact walk on the water, otherwise why are the disciples afraid?