פירוש על הושע 13:8

as a bereaving bear Heb. שַׁכּוּל. Like שּׁוֹכֵל, as you say חָנּוּן, gracious, and רַחוּם, merciful, so שַּׁכּוּל, i.e., entirely attired with bereavements and ready to bereave people.

and I will rend the enclosure of their heart like the habit of the bear, which holds its nails on the chest and rends until the heart. Another explanation: the enclosure of the heart Their heart which is closed from understanding to return to Me.