Hilary of Poitiers — as excerpted in the Catena Aurea on John 7:25-30

“(vi. de Trin. ultra med.) I ask however, does the being from Him express a work of creation, or a birth by generation? If a work of creation, then every thing which is created is from Him. And how then does not all creation know the Father, if the Son knows Him, because He is from Him? But if the knowledge of the Father is peculiar to Him, as being from Him, then the being from Him is peculiar to Him also; i. e. the being the true Son of God by nature. So you have then a peculiar knowledge springing from a peculiar generation. To prevent however any heresy applying the being from Him, to the time of His advent, He adds, And He hath sent Me: thus preserving the order of the Gospel sacrament; first announcing Himself born, and then sent.”