Proverbs 17:21 in the World English Bible
He who becomes the father of a fool grieves. The father of a fool has no joy.
Context
20 He that hath a froward heart findeth no good: and he that hath a perverse tongue falleth into mischief.
21 He that begetteth a fool doeth it to his sorrow: and the father of a fool hath no joy.
22 A merry heart doeth good like a medicine: but a broken spirit drieth the bones.