they: Luk 8:28, Job 1:11, Job 2:5, Phi 2:10, Phi 2:11
the deep: "The abyss," says Dr. Doddridge, "the prison in which many of these fallen spirits are detained; and to which some, who may, like these, have been permitted for a while to range at large, are sometimes by Divine justice and power remanded." Mat 25:41, Rev 9:2, Rev 19:20, Rev 20:2, Rev 20:3, Rev 20:14, Rev 20:15
Reciprocal: 2Pe 2:4 - but Rev 9:1 - the bottomless