Psalm 12:3-4
May the LORD cut off all flattering lips and every boastful tongue that says, "We will triumph with our tongues; we own our lips--who is our master?"
Psalm 39:1-2
I said, "I will watch my ways and keep my tongue from sin; I will put a muzzle on my mouth as long as the wicked are in my presence." But when I was silent and still, not even saying anything good, my anguish increased.
Psalm 34:12-13
Whoever of you loves life and desires to see many good days, keep your tongue from evil and your lips from speaking lies.
Psalm 139:4
Before a word is on my tongue you know it completely, O LORD.
Proverbs 10:19
When words are many, sin is not absent, but he who holds his tongue is wise.
Proverbs 10:31
The mouth of the righteous brings forth wisdom, but a perverse tongue will be cut out.
Proverbs 15:4
The tongue that brings healing is a tree of life, but a deceitful tongue crushes the spirit.
James 1:26
If anyone considers himself religious and yet does not keep a tight rein on his tongue, he deceives himself and his religion is worthless.