All Commentaries on Deuteronomy 6:4 Go To Deuteronomy 6
Gregory of Nyssa
AD 394
Wherefore [Scripture] says, “The Lord God is one Lord.” By the word Godhead it proclaims too the onlybegotten God and does not divide the unity into a duality so as to call the Father and the Son two gods, although each is called God by holy writers. .