Proverbs 25:15 in the King James Version
By long forbearing is a prince persuaded, and a soft tongue breaketh the bone.
Context
14 As clouds and wind without rain, so is he who boasts of gifts deceptively.
15 By patience a ruler is persuaded. A soft tongue breaks the bone.
16 Have you found honey? Eat as much as is sufficient for you, lest you eat too much, and vomit it.