Chasidut zu Tehillim 109:22

The tzaddik gamur, “complete tzaddik,” lacks an evil inclination. The part of the personality that is usually expressed as a drive for physical urges and evil behaviors has been transformed,⁸⁴As King David said, libbi chalal be-kirbi, “My Heart is empty within me” (Ps. 109:22). David was saying that he had successfully emptied the stone part of his heart. The desire for sin, that is unfeeling of the spiritual, is referred to in the Talmud as the stone heart. and it now only seeks virtue.