Sound heart - literally, “heart of health,” that in which all emotions and appetites are in a healthy equilibrium. The contrast with this is the envy which eats, like a consuming disease, into the very bones and marrow of a man’s moral life.
Related Commentaries of Proverbs 14:30
Proverbs 14:30
30 A sound heart is the life of the flesh: but envy the rottenness of the bones.