Erelim (Hebrew: אֶרְאֶלִּים, ʾErʾellīm; sing. אֶרְאֵל, ʾErʾēl; “valiant ones”), is a class of angel whose existence is derived from a verse in the book of Isaiah[1][2][3][4] regarding the impending invasion of Jerusalem by Sennacherib during the reign of King Hezekiah.[2]
While the erelim are ascribed numerous functions in Jewish and Kabbalistic texts and literature, they most often appear to be associated with moments of death and national tragedy.[3][2] They appear in multiple angelic hierarchies, ranking first among the ten orders of angels in the Berit Menuchah,[5] second in the Zohar,[3][5] third by Maimonides,[3][5][6][7][8] and tenth in the Maseket Azilut.[4]