John 6:19-21

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.