In each case, the person described appears at the time of the end. This is the one piece of information that every one of them has in common.

In three of the four, his end—his destruction or annihilation—comes at the return of Jesus Christ (Daniel 7:8-9; II Thessalonians 2:3; Revelation 19:20).

In three of the four, it directly states or strongly implies the person speaks with great pompous words (Daniel 7:8-9; II Thessalonians 2:4; Revelation 13:11-14).

In three of the four, it directly states the person does miraculous, supernatural signs (II Thessalonians 2:9; Revelation 13:13-15; Revelation 19:20).

In two of them, the signs are done in the presence of the Beast, showing they are not the same figure (Revelation 13:13-15; 19:20).

In two of them, he deceives and leads people into idolatry (II Thessalonians 2:4,9-10; Revelation 13:12,14).

In two of them, he either makes war against the saints or causes those who would not worship the beast to be put to death (Daniel 7