Origen
Catena Aurea · Matthäusevangelium 17
And after six days Jesus taketh Peter, James, and John his brother, and bringeth them up into an high mountain apart, And was transfigured before them: and his face did shine as the sun, and his raiment was white as the light. And, behold, there appeared unto them Moses and Elias talking with him. Then answered Peter, and said unto Jesus, Lord, it is good for us to be here: if thou wilt, let us make here three tabernacles; one for thee, and one for Moses, and one for Elias.
However, if any man discerns a spiritual sense in the Law agreeing with the teaching of Jesus, and in the Prophets finds the hidden wisdom of Christ, (1 Cor. 2:7.) he beholds Moses and Elias in the same glory with Jesus.