Luke 17:3
Take heed to yourselves. If your brother sins, rebuke him; and, if he repents, forgive him.
Matthew 18:21
Then Peter, coming near, said to Him, "Lord, how often shall my brother sin against me, and I forgive him? till seven times?"
Matthew 18:15-17
"And, if your brother sin against you, go show him his fault between you and him alone. If he hear you, you gained your brother;
Luke 21:34
"But take heed to yourselves, lest at any time your hearts be weighed down with gluttony and drunkenness, and anxieties pertaining to life, and that day come upon you suddenly as a snare;
Galatians 2:11-14
But, when Cephas came to Antioch, I withstood him to the face, because he was blameworthy;
Ephesians 5:15
Look, therefore, carefully, how ye walk, not as unwise, but as wise,
Hebrews 12:15
looking carefully, lest there be any one falling short of the grace of God; lest any root of bitterness, springing up, trouble you, and through it many be defiled;
James 5:19
My brethren, if anyone among you be led astray from the truth, and one convert him;
2 John 1:8
Take heed to yourselves, that ye lose not the things which we wrought, but that ye receive a full reward.