2 Peter 2:4
4 For if God did not spare uangels when they sinned, but vcast them into hell1 and committed them to chains2 of gloomy darkness wto be kept until the judgment;
Jude 6
6 And pthe angels who did not stay within their own position of authority, but left their proper dwelling, he has kept in eternal chains under gloomy darkness until the judgment of the great day—
Revelation 12:7
Satan Thrown Down to Earth
7 Now war arose in heaven, rMichael and shis angels fighting against the dragon. And the dragon and his angels fought back,