Cyril of Alexandria
Catena Aurea · Lukasevangelium 9
And it came to pass, as he was alone praying, his disciples were with him: and he asked them, saying, Whom say the people that I am? They answering said, John the Baptist; but some say, Elias; and others say, that one of the old prophets is risen again. He said unto them, But whom say ye that I am? Peter answering said, The Christ of God. And he straitly charged them, and commanded them to tell no man that thing; Saying, The Son of man must suffer many things, and be rejected of the elders and Chief Priests and Scribes, and be slain, and be raised the third day.
Our Lord having retired from the multitude, and being in a place apart, was engaged in prayer. As it is said, And it came to pass, as he was alone praying. For He ordained Himself as an example of this, instructing His disciples by an easy method of teaching. For I suppose the rulers of the people ought to be superior also in good deeds, to those that are under them, ever holding converse with them in all necessary things, and treating of those things in which God delights.