Proverbs 3:30 (NKJV) — 30 Do not strive with a man without cause, If he has done you no harm.
We should not provoke a quarrel or cause strife. Moreover, it is foolish and dangerous to involve ourselves in strife that has nothing to do with us.
Psalm 15:3 (NKJV) — 3 He who does not backbite with his tongue, Nor does evil to his neighbor, Nor does he take up a reproach against his friend;
Matthew 5:22 (NKJV) — 22 But I say to you that whoever is angry with his brother without a cause shall be in danger of the judgment. And whoever says to his brother, ‘Raca!’ shall be in danger of the council. But whoever says, ‘You fool!’ shall be in danger of hell fire.
James 5:9 (NKJV) — 9 Do not grumble against one another, brethren, lest you be condemned. Behold, the Judge is standing at the door!
Not infrequently, third parties will think, If I will step into this situation, I can resolve it. But just as frequently, the third party will discover that he incurs the wrath of the two who are in disagreement. His involvement unites the two who were formerly antagonists.
Proverbs 26:17 (NKJV) — 17 He who passes by and meddles in a quarrel not his own Is like one who takes a dog by the ears.