The book of Ephesians serves as a Believer's Boot Camp. He left it up to us to enforce, every day, in earth’s trenches, the victory He won in the Heavens. This 6 lesson series, Believer's Boot Camp teaches us that the church is equipped with vast spiritual weaponry in order to accomplish this very task.
The book of Ephesians is the New Testament equivalent of the Old Testament book of Joshua.
These believers are people who have ceased from aimless wandering and have started warring.
God has given them a promise, but has declared that they will have to fight some battles to lay claim to it. This victory He won in the Heavens. It's assured because the Church is equipped and God’s army is well equipped with spiritual weaponry! That’s why Paul begins Ephesians by talking about the resources of God.