Mark 6:48-50

The wind was against the disciples and he could see that they were straining at the oars, trying to make headway. When it was almost morning, Jesus came to them, walking on the surface of the water, and he started to pass by them. When they all saw him walking on the waves, they thought he was a ghost and screamed out in terror. But he said to them at once, “Don’t yield to fear. Have courage. It’s really me—I Am!”