Luke 17:3
Be on your guard. "If your brother acts wrongly, reprove him; and if he is sorry, forgive him;
Matthew 18:21
At this point Peter came to Him with the question, "Master, how often shall my brother act wrongly towards me and I forgive him? seven times?"
Matthew 18:15-17
"If your brother acts wrongly towards you, go and point out his fault to him when only you and he are there. If he listens to you, you have gained your brother.
Luke 21:34
"But take heed to yourselves, lest your souls be weighed down with self-indulgence and drunkenness or the anxieties of this life, and that day come upon you, suddenly, like a falling trap;
Galatians 2:11-14
Now when Peter visited Antioch, I remonstrated with him to his face, because he had incurred just censure.
Ephesians 5:15
Therefore be very careful how you live and act. Let it not be as unwise men, but as wise.
Hebrews 12:15
Be carefully on your guard lest there be any one who falls back from the grace of God; lest any root bearing bitter fruit spring up and cause trouble among you, and through it the whole brotherhood be defiled;
James 5:19
My brethren, if one of you strays from the truth and some one brings him back,
2 John 1:8
Keep guard over yourselves, so that you may not lose the results of your good deeds, but may receive back a full reward.