John Chrysostom
Catena Aurea · Johannesevangelium 12
Jesus cried and said, He that believeth on me, believeth not on me, but on him that sent me. And he that seeth me seeth him that sent me. I am come a light into the world, that whosoever believeth on me should not abide in darkness. And if any man hear my words, and believe not, I judge him not: for I came not to judge the world, but to save the world. He that rejecteth me, and receiveth not my words, hath one that judgeth him: the word that I have spoken, the same shall judge him in the last day. For I have not spoken of myself; but the Father which sent me, he gave me a commandment, what I should say, and what I should speak. And I know that His commandment is life everlasting: whatsoever I speak therefore, even as the Father said unto me, so I speak.
(Hom. lxix. 1) He that believeth on Me, believeth not on Me, but on Him that sent Me: as if He said, He that taketh water from a stream, taketh the water not of the stream, but of the fountain. Then to shew that it is not possible to believe on the Father, if we do not believe on Him, He says, He that seeth Me, seeth Him that sent Me. What then? Is God a body? By no means; seeing here is the mind’s vision. What follows still further shews His union with the Father. I am come a light into the world. This is what the Father is called in many places. He calls Himself the light, because he delivers from error, and disperses the darkness of the understanding; that whosoever believeth in Me should not abide in darkness.