For there is no faithfulness in their mouth; their inward part is destruction; their throat is an open tomb; they flatter with their tongue. (NKJV)

Psalm 10:7

His mouth is full of cursing and deceit and oppression; under his tongue is trouble and iniquity. (NKJV)

Psalm 12:3

May the Lord cut off all flattering lips, and the tongue that speaks proud things, (NKJV)

Psalm 50:19

You give your mouth to evil, and your tongue frames deceit. (NKJV)

Psalm 52:2,4

Your tongue devises destruction, like a sharp razor, working deceitfully. (NKJV)

Psalm 64:3

Who sharpen their tongue like a sword, and bend their bows to shoot their arrows -- bitter words. (NKJV)

Proverbs 6:17

A proud look, a lying tongue, hands that shed innocent blood, (NKJV)

Proverbs 17:4

An evildoer gives heed to false lips; a liar listens eagerly to a spiteful tongue. (NKJV)

Proverbs 18:21

Death and life are in the power of the tongue, and those who love it will eat its fruit. (NKJV)

James 1:26

If anyone among you thinks he is religious, and does not bridle his tongue but deceives his own heart, this one's religion is useless. (NKJV)

James 3:5-8

Even so the tongue is a little member and boasts great things. See how great a forest a little fire kindles!

And the tongue is a fire, a world of iniquity. The tongue is so set among our members that it defiles the whole body, and sets on fire the course of nature; and it is set on fire by hell. (NKJV)

For every kind of beast and bird, of reptile and creature of the sea, is tamed and has been tamed by mankind.

But no man can tame the tongue. It is unruly evil, full of deadly poison. (NKJV)