The One who comes from above is above all. The one who is from the earth belongs to the earth and speaks as one from the earth. The One who comes from heaven is above all.
31. He who cometh from above. By another comparison he shows how widely Christ differs from all the rest, and how far he is above them; for he compares him to a king or distinguished general, who, speaking from his lofty seat, ought to be heard with reverence for his authority, but shows that it is enough for himself to speak from the lowest footstool of Christ.
In these verses we have, I. Christ's removal into the land of Judea (Joh 3:22), and there he tarried with his disciples. Observe, 1. Our Lord Jesus, after he entered upon his public work, travelled much, and removed often, as the patriarchs in their sojournings.
Commenting on John 3:22-36
And what he hath seen and heard,.... Of the Father, of his mind and will, of his purposes and promises, of his love, grace, and mercy, in the council and covenant of peace, lying in his bosom, and being privy to all his secrets. The phrases express the clear and perfect knowledge Christ has of all truths and doctrines; he having all the treasures of wisdom and knowledge in him.