John answered, saying unto them all, I indeed baptize you with water; but one mightier than I comes, the thong of whose shoes I am not worthy to untie: he shall baptize you with the Holy Spirit and with fire:
All Commentaries on Luke 3:16 Go To Luke 3
Cyril of Alexandria
AD 444
After this, John brings forward a second argument, saying, “I indeed baptize you in water. He shall baptize you in the Holy Spirit and in fire.” This too is of great importance for the proof and demonstration that Jesus is God and Lord. For it is the sole and peculiar property of the Substance that transcends all, to be able to bestow on people the indwelling of the Holy Spirit and make those that draw near unto it partakers of the divine nature. But this exists in Christ, not as a thing received, nor by communication from another, but as his own and as belonging to his substance. He baptizes in the Holy Spirit. Commentary on Luke, Homily