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16And when even was now come, his disciples went down unto the sea, 17And entered into a ship, and went over the sea toward Capernaum. And it was now dark, and Jesus was not come to them. 18And the sea arose by reason of a great wind that blew. 19So when they had rowed about five and twenty or thirty furlongs, they see Jesus walking on the sea, and drawing nigh unto the ship: and they were afraid. 20But he saith unto them, It is I; be not afraid. 21Then they willingly received him into the ship: and immediately the ship was at the land whither they went.
John 6:16-21 (KJV)