3 But if it is evident that subsequently heresies became more numerous and worse; and if, in time past, it was never at all prescribed nor written that only hands should be laid upon a heretic for repentance, and that so he might be communicated with; and if there is only one baptism, which is with us, and is within, and is granted of the divine condescension to the Church alone, what obstinacy is that, or what presumption, to prefer human tradition to divine ordinance, and not to observe that God is indignant and angry as often as human tradition relaxes and passes by the divine precepts, as He cries out, and says by Isaiah the prophet, “This people honours me with their lips, but their heart is far from me.
But in vain do they worship me, teaching the doctrines and commandments of men.” Also the Lord in the Gospel, similarly rebuking and reproving, utters and says, “You reject the commandment of God, that you may keep your own tradition.” Mindful of which precept, the blessed Apostle Paul himself also warns and instructs, saying, “If any man teach otherwise, and consent not to the wholesome words of our Lord Jesus Christ, and to His doctrine, he is proud, knowing nothing: from such withdraw yourself.”
Source: The Epistles of Cyprian (New Advent)