Matthew 18:17

17If he refuses to listen to them, atell it to the church. And if he refuses to listen even to the church, blet him be to you as ca Gentile and da tax collector.

1 Corinthians 5:9-11

9I wrote to you in my letter enot to associate with sexually immoral people— 10 fnot at all meaning gthe sexually immoral of this world, or the greedy and swindlers, or idolaters, hsince then you would need to go out of the world. 11But now I am writing to you not to associate with anyone iwho bears the name of brother if he is guilty of sexual immorality or greed, or is an idolater, reviler, drunkard, or swindler—not even to eat with such a one.

2 Thessalonians 3:6

Warning Against Idleness

6Now we command you, brothers, jin the name of our Lord Jesus Christ, kthat you keep away from any lbrother mwho is walking in idleness and not in accord with the tradition that you received from us.

2 Thessalonians 3:14

14If anyone does not obey what we say in this letter, take note of that person, and nhave nothing to do with him, that he may be ashamed.

1 Timothy 6:3-5

3If anyone oteaches a different doctrine and does not agree with pthe sound
Or healthy
words of our Lord Jesus Christ and the teaching rthat accords with godliness,
4 she is puffed up with conceit and tunderstands nothing. He has an unhealthy craving for ucontroversy and for vquarrels about words, which produce envy, dissension, slander, evil suspicions, 5and constant friction among people wwho are depraved in mind and deprived of the truth, ximagining that godliness is a means of gain.

2 Timothy 3:5

5having the appearance of godliness, but ydenying its power. zAvoid such people.

Titus 3:10

10As for a person who stirs up division, aaafter warning him once and then twice, abhave nothing more to do with him,
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