Proverbs on not talking too much

(Prov. 10:8) The wise in heart accept commands, but a chattering fool comes to ruin.

(Prov. 10:19) Sin is not ended by multiplying words, but the prudent hold their tongues.

(Prov. 12:23) A prudent man keeps his knowledge to himself, but the heart of fools blurts out folly.

(Prov. 17:28) Even a fool is thought wise if he keeps silent, and discerning if he holds his tongue.

(Prov. 21:23) He who guards his mouth and his tongue keeps himself from calamity.

(Prov. 29:20) Do you see someone who speaks in haste? There is more hope for a fool than for them.

(Eccl. 5:1-3) Guard your steps when you go to the house of God. Go near to listen rather than to offer the sacrifice of fools, who do not know that they do wrong. 2 Do not be quick with your mouth, do not be hasty in your heart to utter anything before God. God is in heaven and you are on earth, so let your words be few. 3 As a dream comes when there are many cares, so the speech of a fool when there are many words.

(Eccl. 10:14) The fool multiplies words.