Proverbs 14:30 in the World English Bible
The life of the body is a heart at peace, but envy rots the bones.
Context
29 He that is slow to wrath is of great understanding: but he that is hasty of spirit exalteth folly.
30 A sound heart is the life of the flesh: but envy the rottenness of the bones.
31 He that oppresseth the poor reproacheth his Maker: but he that honoureth him hath mercy on the poor.