Do not contend with a man for no reason, when he has done you no harm.(Prov 3:30, ESV)
Do not be wise in your own eyes; fear the LORD and turn away from evil. It will be healing to your body and refreshment to your bones.(Prov 3:7-8, NASB)
A gentle answer turns away wrath, but a harsh word stirs up anger.(Prov 15:1, NASB)
It is God alone who judges; He decides who will rise and who will fall... For God says, 'I will break the strength of the wicked, but I will increase the power of the godly.'(Psalm 75:7-10, NLT)
Do not judge, and you will not be judged. Do not condemn, and you will not be condemned. Forgive, and you will be forgiven.(Luke 6:37, HCSB)
Why brag about evil... Like a sharpened razor, your tongue devises destruction... You love evil instead of good, lying instead of speaking truthfully. You love any words that destroy, you treacherous tongue! This is why God will bring you down forever...(Psalm 52:1-5, HCSB)
In the multitude of words sin is not lacking, but he who restrains his lips is wise.(Prov 10:19, NKJV)
The one who guards his mouth protects his life; the one who opens his lips invites his own ruin.(Prov 13:3, HCSB)
Death and life are in the power of the tongue, and those who love it will eat its fruit.(Prov 18:21, NASB)
For your ways are in full view of the LORD, and He examines all your paths. The evil deeds of the wicked ensnare them; the cords of their sins hold them fast. For lack of discipline they will die, led astray by their own great folly.(Prov 5:21-23, NIV)
Hatred stirs up conflict, but love covers over all wrongs.(Prov 10:12, NIV)
He who is devoid of wisdom despises his neighbor, but a man of understanding holds his peace.(Prov 11:12, NKJV)
The mind of the righteous person thinks before answering, but the mouth of the wicked blurts out evil things.(Prov 15:28, HCSB)
The beginning of strife is like releasing water; therefore stop contention before a quarrel starts.(Prov 17:14, NKJV)
An appropriate answer brings joy to a person, and a well-timed word is a good thing.(Prov 15:23, ISV)
Treat others the same way you want them to treat you.(Luke 6:31, NASB)
Be merciful, just as your Father is merciful.(Luke 6:36, NASB)
Let no corrupting talk come out of your mouths, but only such as is good for building up, as fits the occasion, that it may give grace to those who hear.(Eph 4:29, ESV)