The catholic Faith then, dearly beloved, may scorn the errors of the heretics that bark against it, who, deceived by the vanity of worldly wisdom, have forsaken the Gospel of Truth, and being unable to understand the Incarnation of the Word, have constructed for themselves out of the source of enlightenment occasion of blindness. For after investigating almost all false believers’ opinions, even those which presume to deny the Holy Spirit, we come to the conclusion that hardly any one has gone astray, unless he has refused to believe the reality of the two natures in Christ under the confession of one Person. For some have ascribed to the Lord only manhood, others only Deity. Some have said that, though there was in Him true Godhead, His flesh was unreal. Others have acknowledged that He took true flesh but say that He had not the nature of God the Father; and by assigning to His Godhead what belonged to His human substance, have made for themselves a greater and a lesser God, although there can be in true Godhead no grades: seeing that whatever is less than God, is not God. Others recognizing that there is no difference between Father and Son, because they could not understand unity of Godhead except in unity of Person, have maintained that the Father is the same as the Son: so that to be born and nursed, to suffer and die, to be buried and rise again, belonged to the same Father who sustained throughout the Person of both