Luke 17:3
Take heed to yourselves. If thy brother sin, rebuke him; and if he repent, forgive him.
Matthew 18:21
Then came Peter, and said to him, Lord, how often shall my brother sin against me, and I forgive him? Until seven times?
Matthew 18:15-17
Moreover, if thy brother sin, go and reprove him between thee and him alone. If he listen to thee, thou hast gained thy brother;
Luke 21:34
But take heed to yourselves, lest at any time your hearts be weighed down with surfeiting and drunkenness and worldly cares, and that day come upon you unawares.
Galatians 2:11-14
But when Cephas came to Antioch, I withstood him to the face; for he was condemned.
Ephesians 5:15
See then that ye walk circumspectly; not as unwise men, but as wise;
Hebrews 12:15
looking diligently, lest any one come short of the grace of God; lest any root of bitterness springing up trouble you, and the many be thereby defiled;
James 5:19
Brethren, if any one among you be led astray from the truth, and one convert him,
2 John 1:8
Look to yourselves, that ye lose not the things which ye wrought, but receive a full reward.