They will be tormented … forever: Rebellion against God has eternal consequences. Some find the idea of endless punishment disturbing, but Revelation and Scripture generally convey that God will deal strictly with sin and rebellion by those who reject Christ's saving work (see Matthew 13:42; 25:41–46; John 3:18, 36; Romans 2:7).
More than any other book in Scripture, Revelation shows that the unrepentant continue their rebellion despite the consequences (Revelation 9:20–21; 16:9–11; compare Luke 16:31). Revelation also highlights that God is just and deals with sin as it deserves.