A nice, large 4to edition of William Gurnall's puritan classic on spiritual warfare, treating the whole armour of God in Ephesians. Also includes the excellent biographical introduction by J. C. Ryle. 

Gurnall, William. The Christian in Complete Armour; A Treatise of the Saints' War against the Devil: Wherein a Discovery is made of that Grand Enemy of God and his People, in his Policies, Power, Seat of his Empire, Wickedness, and Chief Design he hath against the Saints. A Magazine Opened, from whence the Christian is Furnished with Spiritual Arms for the Battle, Helped on with his Armour, and taught to use his Weapon; together with the happy issue of the whole War. Accurately Reprinted from the Author's Own Edition. With a Biographical Introduction by J. C. Ryle. London. Blackie & Son. [1655] 1864. 589 + 656pp. 

Original half leather, attractive, but rubbed, breaches at leather hinges and tender. Textually very clean and solid.