JUD 1:6

6 And you have da'as about the malachim [(angels)], not being content to keep their positions of Memshalah [(Rule, Dominion)], having deserted their own station, these malachim Hashem has kept under sharsherot [(chains)] oif eibik [(forever)], under choshech for the Mishpat HaYom HaGadol, the Judgment of the Great Day.