Be careful to read the Word of God with observation. In it thou hast the history of the most remarkable battles that have been fought by the most eminent worthies in Christ’s army of saints with this great warrior Satan. Here thou mayest see how Satan hath foiled them, and how they recovered their lost ground. Here you have his cabinet-counsels opened. There is not a lust which you are in danger of, but you have it described; not a temptation which the Word doth not arm you against. It is reported that a certain Jew should have poisoned Luther, but was happily prevented by his picture which was sent to Luther, with a warning from a faithful friend that he should take heed of such a man when he saw him, by which he knew the murderer, and escaped his hands. The Word shows thee, O Christian, the face of those lusts which Satan employs to butcher thy precious soul. ‘By them is they servant warned,’ saith David, Ps.xix. 11.”

—William Gurnall, The Christian in Complete Armour(Edinburgh, Banner of Truth Trust, 2002), 85.