TSK
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Now I beg you, brothers, look out for those who are causing the divisions and occasions of stumbling, contrary to the doctrine which you learned, and turn away from them.
For there also must be factions among you, that those who are approved may be revealed among you.
I wish that those who disturb you would cut themselves off.
Now we command you, brothers, in the name of our Lord Jesus Christ, that you withdraw yourselves from every brother who walks in rebellion, and not after the tradition which they received from us.
holding a form of godliness, but having denied its power. Turn away from these, also.
If anyone comes to you, and doesn't bring this teaching, don't receive him into your house, and don't welcome him,