"In His ineffable wisdom the Son of God deigned to communicate step by step to His Disciples an understanding of the truths of His saving faith; for their human hearts could not grasp it all at once. And in the discourses He had already spoken to them He had, as I showed you in my last sermon, made known to them many things concerning the Oneness of His own divinity with that of the Father; making clear that there was no separation between Them; so that even the words He spoke to them were not, He declared, His but the Father’s: And the word which you have heard, is not mine; but the Father’s who sent me (John 14.14). In this sentence He makes it abundantly clear that all who reject the teaching of His Only-Begotten Son reject the teaching of the Father also; since the Son says that the words He spoke are not His but the Father’s; and from this it follows that if they are the words of the Father, they are also the words of the Son; for He declares: All things whatsoever the Father hath are mine (John 16.15)."
On the Promised Coming of the Paraclete
St. Gaudentius, Bishop of Brescia