Proverbs 14:30 in the King James Version
A sound heart is the life of the flesh: but envy the rottenness of the bones.
Context
29 He who is slow to anger has great understanding, but he who has a quick temper displays folly.
30 The life of the body is a heart at peace, but envy rots the bones.
31 He who oppresses the poor shows contempt for his Maker, but he who is kind to the needy honors him.