Proverbs 29:21 KJV
He that delicately bringeth up his servant from a child shall have him become his son at the length.
Proverbs 29:21, King James Version
In context
20 Seest thou a man that is hasty in his words? there is more hope of a fool than of him.
21 He that delicately bringeth up his servant from a child shall have him become his son at the length.
22 An angry man stirreth up strife, and a furious man aboundeth in transgression.