God’s Word—the “Sword of the Spirit”—is necessary not only when we come to faith in Christ, but also as we continue in the Christian life and contend for the faith. Alistair Begg describes the vital role that the Bible plays in the perseverance of all believers, enabling us to respond to Satan’s accusations, hope in times of discouragement, and stay steady in times of doubt. The Sword of the Spirit is suited for the hand of every Christian without distinction, and it is with unashamed confidence in this Word that we make it our aim to persuade others of the hope that we have.