Proverbs 20:23 Midrash

תּוֹעֲבַ֣ת יְ֭הוָה אֶ֣בֶן וָאָ֑בֶן וּמֹאזְנֵ֖י מִרְמָ֣ה לֹא־טֽוֹב׃

Divers weights are an abomination to the LORD; and a false balance is not good.

Read midrashic interpretation of Proverbs 20:23: and classical rabbinic exegesis.