'Conceals' in the Bible

Blessings are on the head of the righteous, but the speech of the wicked conceals violence.

The teaching of the righteous is a fountain of life, but the speech of the wicked conceals violence.

The one who conceals hatred utters lies, and the one who spreads slander is certainly a fool.

The one who goes about slandering others reveals secrets, but the one who is trustworthy conceals a matter.

The shrewd person conceals knowledge, but foolish people publicize folly.