In this timely and insightful work, Isaac Ambrose entreats Christians not to slumber in the midst of battle. He presents the danger of the forces working against Christians--sin, Satan, the world, and the flesh. Be edified by Ambrose's instructions and warning as he reveals from Scripture the tools and weapons God has give believers to fight against spiritual adversaries. Learn how the armor of God is not merely for decoration but rather for use. Ambrose call for determined obedience, steadfastness, and confidence in Christ, who has already won the great battle.