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 10:31

10:31 The speech of the righteous bears the fruit of wisdom,

but the one who speaks perversion will be destroyed.