John 6:16-21

When evening came, His disciples went down to the sea, and they got into a boat and started to cross the sea to Capernaum. It was already dark, and Jesus had still not come [back] to them. The sea was getting rough and rising high because a strong wind was blowing. Then, when they had rowed three or four miles [and were near the center of the sea], they saw Jesus walking on the sea and approaching the boat; and they were [terribly] frightened. But Jesus said to them, “It is I (I AM); do not be afraid.” [Matt 14:27; John 8:58] Then they were willing to take Him on board the boat, and immediately the boat reached the [shore of the] land to which they were going.