Matthew 14:25

And when he had sent the multitudes away, he went up into a mountain apart to pray: and when the evening was come, he was there alone.

But the ship was now in the midst of the sea, tossed with waves: for the wind was contrary.

And when the disciples saw him walking on the sea, they were troubled, saying, It is a spirit; and they cried out for fear.

But straightway Jesus spake unto them, saying, Be of good cheer; it is I; be not afraid.