Proverbs 13:3 New English Translation

³The one who guards his words^[a] guards his life;
whoever is talkative^[b] will come to ruin.^[c]

Proverbs 13:3 tn Heb “mouth” (so KJV, NAB). The term פֶּה (peh, “mouth”) functions as a metonymy of cause for speech.
Proverbs 13:3 tn Heb “opens wide his lips.” This is an idiom meaning “to be talkative” (BDB 832 s.v. פָּשַׂק Qal). Cf. NIV “speaks rashly”; TEV “a careless talker”; CEV “talk too much.”
Proverbs 13:3 tn Heb “ruin belongs to him.”sn Tight control over what one says prevents trouble (e.g., Prov 10:10; 17:28; Jas 3:1-12; Sir 28:25). Amenemope advises to “sleep a night before speaking” (5:15; ANET 422, n. 10). The old Arab proverb is appropriate: “Take heed that your tongue does not cut your throat” (O. Zockler, Proverbs, 134).

New English Translation (NET)