TSK · Romans 16:17

If he refuses to listen to them, tell it to the assembly. If he refuses to hear the assembly also, let him be to you as a Gentile or a tax collector.

Some men came down from Judea and taught the brothers, "Unless you are circumcised after the custom of Moses, you can't be saved."

Now I beg you, brothers, through the name of our Lord, Jesus Christ, that you all speak the same thing and that there be no divisions among you, but that you be perfected together in the same mind and in the same judgment.

I wrote to you in my letter to have no company with sexual sinners;

and there isn't another "good news." Only there are some who trouble you, and want to pervert the Good News of Christ.

Beware of the dogs, beware of the evil workers, beware of the false circumcision.

Be careful that you don't let anyone rob you through his philosophy and vain deceit, after the tradition of men, after the elements of the world, and not after Christ.

If any man doesn't obey our word in this letter, note that man, that you have no company with him, to the end that he may be ashamed.

If anyone teaches a different doctrine, and doesn't consent to sound words, the words of our Lord Jesus Christ, and to the doctrine which is according to godliness,

Avoid a factious man after a first and second warning;

They went out from us, but they didn't belong to us; for if they had belonged to us, they would have continued with us. But they left, that they might be revealed that none of them belong to us.

These are they who cause divisions, and are sensual, not having the Spirit.