He then who has learned this, is bound zealously to confess Christ without shame. And this generation is called adulterous, because it has left God the true Bridegroom of the soul, and has refused to follow the doctrine of Christ, but has prostrated itself to the devil and taken up the seeds of impiety, for which reason also it is called sinful. Whosoever therefore amongst them has denied the kingdom of Christ, and the words of God revealed in the Gospel, shall receive a reward befitting His impiety, when He hears in the second advent, “I know you not.” [Matt 7:23]
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Vict. Ant. e Cat. in Marc.