John Chrysostom

(Hom. xlix. 2) Or He calls it His own, inasmuch as He taught it; not His own, inasmuch as the doctrine was of the Father. If all things however which the Father hath are His, the doctrine for this very reason is His; i. e. because it is the Father’s. Rather that He says, Is not Mine own, shews very strongly, that His doctrine and the Father’s are one: as if He said, I differ nothing from Him; but so act, that it may be thought I say and do nothing else than doth the Father.