This This proverb compares the emotion that gives rise to envy with its opposite, a good heart. The good heart is described as a healing heart since it brings well-being and healthful serenity. In contrast, envy is so self-destructive that it is viewed as rotting the person’s bones, the very aspects of his being that give him the strength to carry on in life.
News Item 123. Mishlei 14-30 (Envy)