Theophylact of Ohrid
Catena Aurea · Johannesevangelium 6
When Jesus therefore perceived that they would come and take him by force, to make him a king, he departed again into a mountain himself alone. And when even was now come, his disciples went down unto the sea, And entered into a ship, and went over the sea toward Capernaum. And it was now dark, and Jesus was not come to them. And the sea arose by reason of a great wind that blew. 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. But he saith unto them, It is I; be not afraid. Then they willingly received him into the ship: and immediately the ship was at the land whither they went.
When either men or devils try to terrify us, let us hear Christ saying, It is I, be not afraid, i. e. I am ever near you, God unchangeable, immoveable; let not any false fears destroy your faith in Me. Observe too our Lord did not come when the danger was beginning, but when it was ending. He suffers us to remain in the midst of dangers and tribulations, that we may be proved thereby, and flee for succour to Him Who is able to give us deliverance when we least expect it. When man’s understanding can no longerhelp him, then the Divine deliverance comes. If we are willing also to receive Christ into the ship, i. e. to live in our hearts, we shall find ourselves immediately in the place, where we wish to be, i. e. heaven.