Cross reference
Proverbs 10:31
31 The mouth of the upright man is budding with wisdom, but the twisted tongue will be cut off.
Psalms 37:30
30 The mouth of the good man says words of wisdom; the talk of his tongue is of righteousness.
Proverbs 10:13
13 In the lips of him who has knowledge wisdom is seen; but a rod is ready for the back of him who is without sense.
Psalms 31:18
18 Let the false lips be shut, which say evil against the upright, looking down on him in their pride.
Psalms 63:11
11 But the king will have joy in God; everyone who takes an oath by him will have cause for pride; but the false mouth will be stopped.
Psalms 120:3-4
3 What punishment will he give you? what more will he do to you, you false tongue?
4 Sharp arrows of the strong, and burning fire.
Proverbs 10:11
11 The mouth of the upright man is a fountain of life, but the mouth of the evil-doer is a bitter cup.
Proverbs 10:20-21
20 The tongue of the upright man is like tested silver: the heart of the evil-doer is of little value.
21 The lips of the upright man give food to men, but the foolish come to death for need of sense.