Proverbs 10:14 New English Translation

¹⁴Those who are wise^[a] store up^[b] knowledge,
but foolish speech^[c] leads to imminent^[d] destruction.

Proverbs 10:14 tn Heb “wise men.”
Proverbs 10:14 sn The verb צָפַן (tsafan, “to store up; to treasure”) may mean (1) the wise acquire and do not lose wisdom (cf. NAB, NIV, TEV), or (2) they do not tell all that they know (cf. NCV), that is, they treasure it up for a time when they will need it. The fool, by contrast, talks without thinking.
Proverbs 10:14 tn Heb “the mouth of foolishness”; cf. NRSV, NLT “the babbling of a fool.” The term פֶּה (peh, “mouth”) functions as a metonymy of cause for speech. The genitive אֶוִיל (ʾevil, “foolishness”) functions as an attributive adjective: “a foolish mouth” = foolish speech.
Proverbs 10:14 tn Heb “near destruction.” The words of the fool that are uttered without wise forethought may invite imminent ruin (e.g., James 3:13-18). See also Ptah-hotep and Amenemope in ANET 414 and 423.

New English Translation (NET)