John 6:16-21

And when evening came, his disciples went down unto the sea; 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. And the sea was rising by reason of a great wind that blew. 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. But he saith unto them, It is I; be not afraid. They were willing therefore to receive him into the boat: and straightway the boat was at the land whither they were going.