Proverbs 15:4 (NKJV) — 4 A wholesome tongue is a tree of life, But perverseness in it breaks the spirit.
A wholesome tongue. A wholesome tongue is a tongue that speaks wisdom, and it is a source of life. (See Proverbs 3:18.) A perverse tongue — a tongue that speaks unwise and evil things — causes a breach, or break, in a person’s spirit. It can also cause similar harm to the hearer.