Proverbs 10:6

10:6 Blessings are on the head of the righteous,

but the speech of the wicked conceals violence.

Proverbs 10:11

10:11 The teaching of the righteous is a fountain of life,

but the speech of the wicked conceals violence.

Proverbs 10:18

10:18 The one who conceals hatred utters lies,

and the one who spreads slander is certainly a fool.

Proverbs 11:13

11:13 The one who goes about slandering others reveals secrets,

but the one who is trustworthy conceals a matter.