John 8:55

"And I keep His saying." Here they might, if at least they had anything to say, have refuted Him, for it was the strongest proof of His having been sent by God. "Your father Abraham rejoiced to see My day, and he saw it, and was glad." Again, He showeth that they were aliens from the race of Abraham, if they grieved at what he rejoiced in. "My day," seems to me to mean the day of the Crucifixion, which Abraham foreshowed typically by the offering of the ram and of Isaac.

"Yet ye have not known Him." Because He desired to show that they not only knew not His Father, but that they knew not God. "But I know Him." "So that to say, 'I know Him,' is not a boast, while to say, 'I know Him not,' would be a falsehood; but ye when ye say that ye know Him, lie; as then ye, when ye say that ye know Him, lie, so also should I, were I to say that I know Him not." "If I honor Myself." Since they said, "Whom makest thou thyself?" He replieth, "If I make (Myself anything,) My honor is nothing. As then I know Him exactly, so ye know Him not." And as in the case of Abraham, He did not take away their whole assertion, but said, "I know that ye are Abraham's seed," so as to make the charge against them heavier; thus here He doth not remove the whole, but what? "Whom ye say." By granting to them their boast of words, He increaseth the force of the accusation against them. How then do ye "not know Him"? "Because ye insult One who saith and doeth everything that He may be glorified, even when that One is sent from Him." This assertion is unsupported by testimony, but what follows serves to establish it. "And I keep His saying." Here they might, if at least they had anything to say, have refuted Him, for it was the strongest proof of His having been sent by God.

(Tr. xliii. 15) Some heretics say that the God proclaimed in the Old Testament is not the Father of Christ, but a kind of prince of bad angels. These He contradicts when He calls Him His Father, whom the Jews called their God, and knew not. For had they known Him, they would have received His Son. Of Himself however He adds, But I know Him. And here too, to men judging after the flesh, He might appear arrogant. But let not arrogance be so guarded against, as that truth be deserted. Therefore our Lord says, And if I should say I know Him not, I should be a liar like unto you. (Tr. xliii. 15) He spoke the saying of the Father too, as being the Son; and He was Himself that Word of the Father, which He spoke to men.

As if to say, Ye call Him your God, after a carnal manner, serving Him for temporal rewards. Ye have not known Him, as He should be known; ye are not able to serve Him spiritually.

"If I honor Myself, My honor is nothing." What say the heretics here? That He heard the question, "Art thou greater than our father Abraham?" and dared not to say to them, "Yea, I am greater," but did so in a covert manner. What then? Is His honor "nothing"? With respect to them it is nothing. And as He said, "My witness is not true," with reference to the opinion they would form of it, so also doth He speak here. "There is One that honoreth Me." And wherefore said He not, "The Father that sent Me," as He did before, but, "Of whom ye say that He is your God. Yet ye have not known Him." Because He desired to show that they not only knew not His Father, but that they knew not God.