Luke 17:3
Take heed to yourselves; if your brother sins, reprove him; and if he changes his mind, forgive him;
Matthew 18:21
Then came Peter and said to him, Lord, how many times shall my brother sin against me and I forgive him? Till seven times?
Matthew 18:15-17
But if your brother sins against you, go and reprove him between you and him alone. If he hears you, you have gained your brother.
Luke 21:34
Take heed to yourselves, that your hearts be not oppressed with revelling and drunkenness, and worldly cares, and that day come upon you suddenly;
Galatians 2:11-14
But when Peter came to Antioch I opposed him to his face, because he was to blame.
Ephesians 5:15
See then that you walk discreetly, not as unwise but as wise,
Hebrews 12:15
taking care that no one may come short of the grace of God, that no root of bitterness springing up may make trouble and by it many be defiled,
James 5:19
Brothers, if any one among you errs from the truth, and one converts him,
2 John 1:8
Take heed to yourselves, that ye lose not the labor which you performed, but receive a full reward.