But when He saith, “Neither knoweth any man the Father, save the Son,” He means not this, that all men were ignorant of Him, but that with the knowledge wherewith He knows Him, no man is acquainted with Him; which may be said of the Son too. For it was not of some God unknown, and revealed to no man, that He was so speaking, as Marcion saith;but it is the perfection of knowledge that He is here intimating, since neither do we know the Son as He should be known; and this very thing, to add no more, Paul was declaring, when he said, “We know in part, and we prophesy in part.”