King James Version (KJV) Authorized Version 1611
Read Full Chapter (Proverbs 10)

Proverbs 10:18-21 KJV

"He that hideth hatred with lying lips, and he that uttereth a slander, is a fool. In the multitude of words there wanteth not sin: but he that refraineth his lips is wise. The tongue of the just is as choice silver: the heart of the wicked is little worth. The lips of the righteous feed many: but fools die for want of wisdom."
Proverbs Chapter 10, Verse 18-21

Proverbs 10:18-21 in Context (Verses 15–24 KJV)

15
The rich man’s wealth is his strong city: the destruction of the poor is their poverty.
16
The labour of the righteous tendeth to life: the fruit of the wicked to sin.
17
He is in the way of life that keepeth instruction: but he that refuseth reproof erreth.*
18
He that hideth hatred with lying lips, and he that uttereth a slander, is a fool.
19
In the multitude of words there wanteth not sin: but he that refraineth his lips is wise.
20
The tongue of the just is as choice silver: the heart of the wicked is little worth.
21
The lips of the righteous feed many: but fools die for want of wisdom.*
22
The blessing of the LORD, it maketh rich, and he addeth no sorrow with it.
23
It is as sport to a fool to do mischief: but a man of understanding hath wisdom.
24
The fear of the wicked, it shall come upon him: but the desire of the righteous shall be granted.