NET
21 Whoever brings a fool into the world does so to his grief, and the father of a fool has no joy.
Darby
21 He that begetteth a fool [doeth it] to his sorrow, and the father of a vile [man] hath no joy.
KJV
21 He that begetteth a fool [doeth it] to his sorrow: and the father of a fool hath no joy.