Dr. Thompson begins discussing the idea that we do not wrestle against flesh and blood, but against principalities, etc. He discusses the dynamics of spiritual warfare, including the concept of two armies An army of warriors angels and an army of judges men . The delay in Christ s return has to do with the fact that the army of judges is not ready yet, he says. This life of trials and tests is to form Christ in us which makes us ready to judge and rule with Him. He segues into the purpose of the blood of Christ: it forgives our sins, it cleanses sin, it covers us for protection , it nourishes the inner man, it deadens the power of sin over you, and it will literally remove the sin from you at His coming . The sermon is much more interesting than I m making it sound.