Gregory the Great
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.
(xxx. Moral. viii.) When He declares that He will shew them plainly of the Father, He alludes to the manifestation about to take place of His own majesty, which would both shew His own equality with the Father, and the procession of the coeternal Spirit from both.