And aware of this, Rebbe, Melech HaMoshiach says to them, Why are you discussing that you do not have kikrot? Do you not yet have binah (understanding) nor comprehend? Have your levavot fallen into timtum halev (hardening of the heart), KESHI (hardness, stubbornness, DEVARIM 9:27)? [YESHAYAH 6:9,10]