Hilary of Poitiers
Catena Aurea · Johannesevangelium 16
And in that day ye shall ask me nothing. Verily, verily, I say unto you, Whatsoever ye shall ask the Father in my name, he will give it you. Hitherto have ye asked nothing in my name: ask, and ye shall receive, that your joy may be full. These things have I spoken unto you in proverbs: but the time cometh, when I shall no more speak unto you in proverbs, but I shall shew you plainly of the Father. At that day ye shall ask in my name: and I say not unto you, that I will pray the Father for you: For the Father himself loveth you, because ye have loved me, and have believed that I came out from God. I came forth from the Father, and am come into the world: again, I leave the world, and go to the Father.
(vi. de. Trin. c. 31) Perfect faith in the Son, which believes and loves what has come forth from God, and deserveth to be heard and loved for its own sake, this faith confessing the Son of God, born from Him, and sent by Him, needeth not an intercessor with the Father: wherefore it follows, And have believed that I came forth from God. His nativity and advent are signified by, I came forth from the Father, and am come into the world. The one is dispensation, the other nature. To have come from the Father, and to have come forth from God, have not the same meaning; because it is one thing to have come forth from God in the relation of Sonship1, another thing to have come from the Father into this world to accomplish the mystery2 of our salvation. Since to come forth from God is to subsist as His Son3, what else can He be but God.