Bible verses about Speech
Let a rotten saying not proceed out of YOUR mouth, but whatever saying is good for building up as the need may be, that it may impart what is favorable to the hearers. – Ephesians 4:29
Do not hurry yourself as regards your mouth; and as for your heart, let it not be hasty to bring forth a word before the [true] God. For the [true] God is in the heavens but you are on the earth. That is why your words should prove to be few. – Ecclesiastes 5:2
Let your speech always be with grace, as though seasoned with salt, so that you will know how you should respond to each person.
– Colossians 4:6 (New American Standard Bible)
There exists the one speaking thoughtlessly as with the stabs of a sword, but the tongue of the wise ones is a healing. – Proverbs 12:18
But now really put them all away from YOU, wrath, anger, badness, abusive speech, and obscene talk out of YOUR mouth. – Colossians 3:8
In the abundance of words there does not fail to be transgression, but the one keeping his lips in check is acting discreetly. – Proverbs 10:19