נוֹצֵ֣ר תּ֭וֹרָה בֵּ֣ן מֵבִ֑ין וְרֹעֶה זֽ֝וֹלְלִ֗ים יַכְלִ֥ים אָבִֽיו׃
A wise son observeth the teaching; ut he that is a companion of gluttonous men shameth his father.
Read midrashic interpretation of Proverbs 28:7: and classical rabbinic exegesis.