Job 6:16 Midrash

הַקֹּדְרִ֥ים מִנִּי־קָ֑רַח עָ֝לֵ֗ימוֹ יִתְעַלֶּם־שָֽׁלֶג׃

Which are black by reason of the ice, And wherein the snow hideth itself;