Titus 3:10

Verse 10. A man that is, and so forth Many ancient copies have this passage thus, Avoid a heretic after one reprehension. S. Irenæus, Tertullian, S. Cyprian, Ambrose, and so forth and many ancient Greek copies, omit a second reprehension. They thought once warning a heretic sufficient; a second correction only served to render him more insolent, and more obstinate in his false opinions. Certainly the faith of Christ has been so firmly established, that a man instructed in Scripture and tradition cannot conscientiously remain a heretic; he must be well aware of the crime of disunion; his own judgment, as Saint Paul says, must condemn him.