Augustine of Hippo

(Tr. xxi. s. 5) But now from Him whom we called coeternal with the Father, who saw the Father, and existed in that He saw, we return to the things of time, And He will shew him greater works than these. But if He will shew him, i. e. is about to shew him, He hath not yet shewn him: and when He does shew him, others also will see; (Tr. xix). for it follows, That ye may believe. It is difficult to see what the eternal Father can shew in time to the coeternal Son, Who knows all that exists within the Father’s mind. For as the Father raiseth up the dead, and quickeneth them, even so the Son quickeneth whom He will. To raise the dead was a greater work than to heal the sick. But this is explained by consideriug that He Who a little before spoke as God, now begins to speak as man. As man, and therefore living in time, He will be shewn greater works in time. Bodies will rise again by the human dispensation by which the Son of God assumed manhood in time; but souls by virtue of the eternity of the Divine Substance. For which reason it was said before that the Father loved the Son, and shewed Him what things soever He did. For the Father shews the Son that souls are raised up; for they are raised up by the Father and the Son, even as they cannot live, except God give them life. (Tr. xxi). Or the Father is about to shew this to us, not to Him; according to what follows, That ye may believe. This being the reason why the Father would shew Him greater things than these. But why did He not say, shall shew you, instead of the Son? Because we are members of the Son, and He, as it were, learns in His members, even as He suffers in us. For as He says, Inasmuch as ye have done it unto one of the least of these My brethren, ye have done it unto Me: (Matt. 25:40) so, if we ask Him, how He, the Teacher of all things, learns, He replies, When one of the least of My brethren learns, I learn.