Proverbs 17:21 Kabbalah

יֹלֵ֣ד כְּ֭סִיל לְת֣וּגָה ל֑וֹ וְלֹֽא־יִ֝שְׂמַ֗ח אֲבִ֣י נָבָֽל׃

He that begetteth a fool doeth it to his sorrow; And the father of a churl hath no joy.

Read kabbalistic (mystical) interpretation of Proverbs 17:21: and classical mystical sources.