All Christians will have to deal with spiritual warfare at some point in their life. The Armor of God is written to remind the Christian believer first of all that they have power and then to remind them of the power that they have. Second, it instructs them of who their foes are. Often times, the believer will look at an individual not realizing that their foe is not specifically an individual. Finally, the Armor of God instructs the believer about the Armor of a soldier and a Christian. We are soldiers in the army of the Lord. In order to properly engage in spiritual warfare, one must be prepared for battle.
