Proverbs 10:20-21

10:20 What the righteous say is like the best silver,

but what the wicked think is of little value.

10:21 The teaching of the righteous feeds many,

but fools die for lack of wisdom.

Proverbs 10:32

10:32 The lips of the righteous know what is pleasing,

but the speech of the wicked is perverse.

Proverbs 13:14

13:14 Instruction from the wise is like a life-giving fountain,

to turn a person from deadly snares.

Proverbs 15:7

15:7 The lips of the wise spread knowledge,

but not so the heart of fools.

Proverbs 16:22-24

16:22 Insight is like a life-giving fountain to the one who possesses it,

but folly leads to the discipline of fools.

16:23 A wise person’s heart makes his speech wise

and it adds persuasiveness to his words.

16:24 Pleasant words are like a honeycomb,

sweet to the soul and healing to the bones.

Proverbs 18:4

18:4 The words of a person’s mouth are like deep waters,

and the fountain of wisdom is like a flowing brook.

Proverbs 20:15

20:15 There is gold, and an abundance of rubies,

but words of knowledge are like a precious jewel.

Psalms 37:30-31

37:30 The godly speak wise words

and promote justice.

37:31 The law of their God controls their thinking;

their feet do not slip.

Ephesians 4:29

4:29 You must let no unwholesome word come out of your mouth, but only what is beneficial for the building up of the one in need, that it may give grace to those who hear.