Luke 17:3
Take heed to yourselves; if your brother sins, rebuke him, and if he repents, forgive him.
Matthew 18:21
Then Peter came to him and said, "Lord, how often shall my brother sin against me, and I forgive him? Up to seven times?"
Matthew 18:15-17
"If your brother sins against you, go and tell him his fault, between you and him alone. If he listens to you, you have gained your brother.
Luke 21:34
"But take heed to yourselves, lest your hearts be weighed down with dissipation and drunkenness and cares of this life, and that Day come on you unexpectedly like a trap.
Galatians 2:11-14
But when Cephas came to Antioch, I opposed him to his face, because he stood condemned.
Ephesians 5:15
Be careful, then, how you walk, not as unwise men, but as wise,
Hebrews 12:15
See to it that no one comes short of the grace of God; that no root of bitterness spring up and cause trouble, and by it many become defiled;
James 5:19
My brethren, if anyone among you wanders from the truth and someone brings him back,
2 John 1:8
Watch yourselves, that you do not lose what you have worked for, but that you may receive a full reward.