The Apostle Paul
Titus 3:10ESV·traditional attribution

As for a person who stirs up division, after warning him once and then twice, have nothing more to do with him,

John Calvin Reformed @genevareformer

CHAPTER 3 Titus 3:1-3 1. Put them in mind to be subject to principalities and powers, to obey magistrates, to be ready to every good work, 1. Admone illos principibus et potestatibus subditos esse dicto oboedire ad omne opus bonum paratos esse 2. To speak evil of no man, to be no brawlers, but gentle, shewing all meekness unto all men. 2.

Commenting on Titus 3:1-15

Matthew Henry Presbyterian @wholebiblehenry

Here is the fifth and last thing in the matter of the epistle: what Titus should avoid in teaching; how he should deal with a heretic; with some other directions. Observe, I. That the apostle's meaning might be more clear and full, and especially fitted to the time and state of things in Crete, and the many judaizers among them, he tells Titus what, in...

Commenting on Titus 3:9-15

John Gill Reformed Baptist @doctorgill

A man that is an heretic,.... An heretic, according to the notation of the word, is either one that makes choice of an opinion upon his own judgment, contrary to the generally received sense of the churches of Christ, and prefers it to theirs, and obstinately persists in it; separates from them, forms a party, and sets himself at the head of them, whom he...