But if I do, though you believe not me, believe the works: that you may know, and believe, that the Father is in me, and I in him.
All Commentaries on John 10:38 Go To John 10
Cyril of Alexandria
AD 444
Therefore, as there is but One Godhead in Father and Son and Holy Spirit, we say that the Father is seen in the Son, and the Son in the Father. And it is necessary to know this other point also, that it is not the wishing the same things as the Father, nor the possessing one will with Him, that makes the Son say: I am in the Father, and the Father in Me, and: I and the Father are One; but because, being the genuine Offspring of the Essence of the Father, He shews forth the Father in Himself, and Himself also is shewn forth in the Father. For He says that He wills and speaks and effects the same things as the Father, and easily performs what He wishes, even as the Father doth, in order that He may be acknowledged in all respects Consubstantial with Him, and a true Fruit of His Essence; and not merely as having a relative unity with Him, only in similarity of will and the laws of love; which unity we say belongs also to His creatures.