14 “Jesus answered, If I glorify myself, my glory is nothing: it is my Father that glorifies me.” He said this on account of their saying, “Whom makest you yourself?” For He refers His glory to the Father, of whom it is that He is God. From this expression also the Arians sometimes revile our faith, and say, See, the Father is greater; for at all events He glorifies the Son. Heretic, have you not read of the Son Himself also saying that He glorifies His Father? If both He glorifies the Son, and the Son glorifies the Father, lay aside your stubbornness, acknowledge the equality, correct your perversity.
Source: Tractates on the Gospel of John (New Advent)