John 6:46

Lest His hearers should suppose that in Messianic times direct knowledge of God was to be communicated, He adds, οὐχ ὅτι τὸν πατέρα τις ἑώρακεν, it is not by direct vision men are to learn of God. One alone has direct perception of the Father, ὁ ὢν παρὰ τοῦ Θεοῦ, He whose origin is Divine; not ὁ ἀπεσταλμένος παρὰ Θεοῦ, a designation which belonged to all prophets, but He whose Being is directly derived from God. Similarly, in John 7:29, we find Jesus saying ἐγὼ οἶδα αὐτόν ὅτι παρʼ αὐτοῦ εἰμί καὶ ἐκεῖνός με ἀπέστειλεν, where the source of the mission and the source of the being are separately mentioned. To refer this exclusive vision of the Father to any earthly experience seems out of the question. No one who was not more than man could thus separate himself from all men. See John 1:18. Having thus explained that they could not believe in Him without having first been taught of God, He returns (John 6:47) to the affirmation of John 6:40, ἀμὴν … ζωῆς. Their unbelief does not alter the fact, nor weaken His assurance of the fact. This consciousness of Messiahship was so identified with His spiritual experience and existence that nothing could shake it. But now He adds a significant confirmation of His claim.