But I beg you, brothers, to take note of those who cause dissensions and offenses contrary to the doctrine that you have learned, and to turn away from them.
I have preached when present, and I will preach now while absent, to those who sinned before, and to all the others, because, when I arrive again, I will not be lenient with you.
But we strongly caution you, brothers, in the name of our Lord Jesus Christ, to draw yourselves away from every brother who is walking in disorder and not according to the tradition that they received from us.
But there were also false prophets among the people, just as there will be among you lying teachers, who will introduce divisions of perdition, and they will deny him who bought them, the Lord, bringing upon themselves swift destruction.