United argues that the Christian life is not merely personal salvation, but covenantal transformation. Through the sovereign work of God in Christ, dead sinners are made alive, enemies are reconciled, outsiders are brought near, and believers are formed into one household under the rule of Jesus Christ. The book of Ephesians teaches that true unity is not found in shared preferences, politics, or personality, but in union with Christ Himself. Because Christ is the head of the Church and all things are under His feet, men are called to submit to His lordship, walk in holiness, lead with conviction, and live in biblical brotherhood for the praise of God’s glorious grace.