3 Be careful. If your brother sins against you, rebuke him. If he repents, forgive him.
Luke 17:3 Cross References - WEB
Exodus 34:12
12 Be careful, lest you make a covenant with the inhabitants of the land where you are going, lest it be for a snare among you;
Leviticus 19:17
17 “‘You shall not hate your brother in your heart. You shall surely rebuke your neighbor, and not bear sin because of him.
Deuteronomy 4:9
9 Only be careful, and keep your soul diligently, lest you forget the things which your eyes saw, and lest they depart from your heart all the days of your life; but make them known to your children and your children’s children—
Deuteronomy 4:15
15 Be very careful, for you saw no kind of form on the day that Yahweh spoke to you in Horeb out of the middle of the fire,
Deuteronomy 4:23
23 Be careful, lest you forget the covenant of Yahweh your God, which he made with you, and make yourselves a carved image in the form of anything which Yahweh your God has forbidden you.
2 Chronicles 19:6-7
Psalms 141:5
5 Let the righteous strike me, it is kindness; let him reprove me, it is like oil on the head; don’t let my head refuse it; Yet my prayer is always against evil deeds.
Proverbs 9:8
8 Don’t reprove a scoffer, lest he hate you. Reprove a wise person, and he will love you.
Proverbs 17:10
10 A rebuke enters deeper into one who has understanding than a hundred lashes into a fool.
Proverbs 27:5
5 Better is open rebuke than hidden love.
Matthew 18:15-17
15 “If your brother sins against you, go, show him his fault between you and him alone. If he listens to you, you have gained back your brother.
16 But if he doesn’t listen, take one or two more with you, that at the mouth of two or three witnesses every word may be established.
17 If he refuses to listen to them, tell it to the assembly. If he refuses to hear the assembly also, let him be to you as a Gentile or a tax collector.
Matthew 18:21
21 Then Peter came and said to him, “Lord, how often shall my brother sin against me, and I forgive him? Until seven times?”
Luke 21:34
34 “So be careful, or your hearts will be loaded down with carousing, drunkenness, and cares of this life, and that day will come on you suddenly.
Galatians 2:11-14
11 But when Peter came to Antioch, I resisted him to his face, because he stood condemned.
12 For before some people came from James, he ate with the Gentiles. But when they came, he drew back and separated himself, fearing those who were of the circumcision.
13 And the rest of the Jews joined him in his hypocrisy, so that even Barnabas was carried away with their hypocrisy.
14 But when I saw that they didn’t walk uprightly according to the truth of the Good News, I said to Peter before them all, “If you, being a Jew, live as the Gentiles do, and not as the Jews do, why do you compel the Gentiles to live as the Jews do?
Ephesians 5:15
15 Therefore watch carefully how you walk, not as unwise, but as wise,
Hebrews 12:15
15 looking carefully lest there be any man who falls short of the grace of God, lest any root of bitterness springing up trouble you, and many be defiled by it,
James 5:19
19 Brothers, if any among you wanders from the truth and someone turns him back,
2 John 1:8
8 Watch yourselves, that we don’t lose the things which we have accomplished, but that we receive a full reward.