Proverbs 10:19

When there are many words, transgression is unavoidable,

But he who holds back his lips has insight.

Proverbs 12:23

A prudent man conceals knowledge,

But the heart of fools proclaims folly.

The one who guards his mouth keeps his soul;

The one who opens wide his lips comes to ruin.

Even an ignorant fool, when he keeps silent, is considered wise;

When he closes his lips, he is considered understanding.

He who responds with a word before he hears,

It is folly and shame to him.

He who keeps his mouth and his tongue,

Keeps his soul from troubles.