Mark 6:45-50

Immediately He made His disciples get into the boat and go before Him to the other side, to Bethsaida, while He sent the multitude away. And when He had sent them away, He departed to the mountain to pray. Now when evening came, the boat was in the middle of the sea; and He was alone on the land. Then He saw them straining at rowing, for the wind was against them. Now about the fourth watch of the night He came to them, walking on the sea, and would have passed them by. And when they saw Him walking on the sea, they supposed it was a ghost, and cried out; for they all saw Him and were troubled. But immediately He talked with them and said to them, “Be of good cheer! It is I; do not be afraid.”