John 6:16-21

16 When evening came, his disciples went down to the sea,  17 and they entered into the boat, and were going over the sea to Capernaum. It was now dark, and Jesus had not come to them.  18 The sea was tossed by a great wind blowing.  19 When therefore they had rowed about twenty-five or thirty stadia, they saw Jesus walking on the sea, and drawing near to the boat; and they were afraid.  20 But he said to them, “I AM. Don't be afraid.”  21 They were willing therefore to receive him into the boat. Immediately the boat was at the land where they were going.