Proverbs 25:15 KJV
By long forbearing is a prince persuaded, and a soft tongue breaketh the bone.
Proverbs 25:15, King James Version
In context
14 Whoso boasteth himself of a false gift is like clouds and wind without rain.
15 By long forbearing is a prince persuaded, and a soft tongue breaketh the bone.
16 Hast thou found honey? eat so much as is sufficient for thee, lest thou be filled therewith, and vomit it.