A soft answer turns away wrath

“A soft answer turns away wrath, but a harsh word stirs up anger.” (Prov. 15:1 ESV)

A wise person uses words with restraint

“The one who has knowledge uses words with restraint, and whoever has understanding is even-tempered. Even fools are thought wise if they keep silent, and discerning if they hold their tongues.” (Prov. 17:27-28 NIV)

Speak using gentleness and respect

“But in your hearts revere Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have. But do this with gentleness and respect, keeping a clear conscience, so that those who speak maliciously against your good behavior in Christ may be ashamed of their slander.” (1 Peter 3:15-16 NIV)

Show perfect courtesy towards all people

“To speak evil of no one, to avoid quarreling, to be gentle, and to show perfect courtesy toward all people.” (Titus 3:2 ESV)

Be silent and the Lord will fight for you

“The Lord will fight for you, and you have only to be silent.” (Ex. 14:14 ESV)