Jude 1 6
And angels who did not keep their own designated place of power, but abandoned their proper dwelling place, [these] He has kept in eternal chains under [the thick gloom of utter] darkness for the judgment of the great day,
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EAS Jude 1:6Also remember that some angels refused to obey God. They took more authority for themselves than God had given them. They left their own proper place with God in heaven. So God has tied them up as prisoners for ever in a completely dark place. He will keep them there until that great day when he will judge everyone.