The results of the fool's disposition and actions are further noted. A fool's mouth is his destruction (comp. Proverbs 10:15; Proverbs 13:9; Ecclesiastes 10:12). A mediaeval adage pronounces, "Ex lingua stulta veniunt incommoda multa."
His lips are the snare of his soul; bring his life into danger (see on Proverbs 12:13; comp. Proverbs 13:14; Proverbs 14:27; Proverbs 17:28). So St. Luke (Luke 21:35) speaks of the last day, coming upon men like "a snare (?
慣款菅??)," the word used by the Septuagint in this passage.