At the end of his letter to the Ephesians, Paul called his readers to arms against the devil. This conclusion isn’t an afterthought, but the logical consequence of God’s purposes worked out among His people. Alistair Begg addresses the reality that Satan is a personal and powerful being who, though defeated, continues to act with his agents to oppose God. When men and women are united to Christ, they become Satan’s enemies and the objects of his opposition to God’s plan to unite all things together in Christ Jesus.