The Christian in Complete Armor, by Puritan Pastor William Gurnall, is an extensive exposition of Ephesians 6:10–18, and as such, stands as the quintessential playbook for spiritual warfare for the ages. By committing it to the printed page, Gurnall has produced the definitive owner’s manual of our spiritual armor and weaponry.

The current edition (the product of more than two years of meticulous work) attempts, as much possible, to be a faithful reproduction of the Blackie and Son (Scotland) edition, published in 1865. While no attempt has been made at a thoroughgoing modernization, genuinely obsolete words or phrases have been replaced with those more common and intelligible to the contemporary reader. Archaic spellings have been modernized. Hundreds of Scripture references are embedded with hyperlinks—no internet connection is required. Dozens of Greek and Hebrew terms are correctly rendered throughout the text.

Includes the biographical preface by J.C. Ryle, and is appended with his two sermons "The Magistrate's Portraiture" and "The Christian's Labor and Reward".