וּמַלְתֶּ֕ם אֵ֖ת עָרְלַ֣ת לְבַבְכֶ֑ם וְעָ֨רְפְּכֶ֔ם לֹ֥א תַקְשׁ֖וּ עֽוֹד׃
Обрежь крайнюю плоть твоего сердца и не теряй жестокости;
Flames of Faith
Perhaps it is these two classes of kelippos that are referred to in the following verse: U-maltem es orlas livavchem, ve-arpechem lo takshu od, “And you shall circumcise the foreskin of your heart and you should not harden your stubbornness any further” (Deut. 10:16).