John 6:18 KJV
And the sea arose by reason of a great wind that blew.
John 6:18, King James Version
In context
17 And entered into a ship, and went over the sea toward Capernaum. And it was now dark, and Jesus was not come to them.
18 And the sea arose by reason of a great wind that blew.
19 So 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.