Mark Visser continues the series on The Kingdom. There are two kingdoms at war with one another, the Kingdom of God and the kingdom of Satan. As disciples of Jesus Christ, we are involved in spiritual warfare, and in any warfare, one of the most important things to know is to know your enemy. Ask any military commander about this, and he or she will tell you, it is true. The more you know about your enemy, the better you can prepare yourself against the attacks of the enemy, and, the better prepared you can be to go on the attack against the enemy.