In Revelation, John gives us a picture of the Anti-Christ's nature, reality, and mark. In Revelation 12, we see a cosmic view of the battle between the devil (the dragon) and God's people, and in Revelation 13, we're introduced to the beast (the anti-Christ)–a man whom the dragon gives his authority to. These passages remind us to be careful how much faith we're putting in other people and force us to ask, whose mark do I bear?