This series of sermons comes from Ephesians 6:10-20.
In one of his dedications he writes, “The subject of the treatise is solemn; A War between the Saint and Satan, and that so bloody a one, that the cruelest which was ever fought by men will be found but sport and child’s play to this. It is a spiritual war that you shall read of; and that not a history of what was fought many ages past and is now over, but of what is now doing—the tragedy is at present acting—and that not at the furthest end of the world, but what concerns thee and every one that reads it. The stage whereon this war is fought is every man’s own soul. Here is no neuter in this war. The whole world is engaged in the quarrel, either for God against Satan, or for Satan against God.” (emphasis his, Gurnall, v)
With these solemn, weighty words, I was eager to engage! What depths of the Scriptures has Gurnall dove that will draw strength for me in this war? It only took a few pages into the very first verse (Ephesians 6:10) before Gurnall began to tune my heart to the power of God’s Word.
For this first guide, I shall take Gurnall’s first point, namely “The Christian is to proclaim and prosecute an irreconcilable war against his bosom sins; those sins which have lain nearest his heart, must now be trampled under his feet.” (emphasis his, Gurnall, 13)
He goes on to write, “So David, ‘I have kept myself from iniquity.’ Now what courage and resolution does this require?” (Gurnall, 13) He then uses Abraham’s willingness to sacrifice Isaac as unable to equal the power our “bosom sins” hold over us, how desperate and difficult the task truly is. He passionately cries, “Yet, what was that to this? Soul, take thy lust, thy only list, which is the child of thy dearest love, thy Isaac, the sin which has caused most joy and laughed, from which thou hast promised thyself the greatest return of pleasure or profit; as ever thou lookest to see my face with comfort, lay hands on it and offer it up: pour out the blood of it before me; run the sacrificing knife of mortification into the very heart of it; and this freely, joyfully, for it is no pleasing sacrifice that is offered with a countenance cast down—and all this now before thou hast one embrace more from it. Truly this is a hard chapter, flesh and blood cannot bear this saying; our lust will not lie so patiently on the altar, as Isaac, or as a ‘Lamb that is brought to the slaughter which was dumb,’ but will roar and shriek; yea, even shake and rend the heart with its hideous outcries.” (Gurnall, 13)
Paul opens this section of the Christian and the war by encouraging, “Finally, be strong in the Lord…” (Ephesians 6:10, ESV) Gurnall’s exhortation is drawn from this one verse. Actually, it is the idea found in “be strong”. He denotes this doctrine as “The Christian of all men needs courage and resolution.”
I sat in my living room floor floored. I have read that verse dozens of times, and never has its power and implications hit me as hard as when exposited by this Puritan preacher.
Have you seen the seriousness of the battle at hand? Do you see the need for courage in God for this fight? Do you see how vicious, destruction, and unrelenting the enemy of sin is to your soul? I have not felt the weight of it until now. And lest you leave this initial post discouraged at how great the battle is and how malevolent our inner-enemy is, remember from Whom our strength comes: it is the God who, when He speaks, things happen (Genesis 1:3), it is the God at whose presence the whole earth trembles (Psalm 33:8; 114:7), it is the God who made an open show of our dastardly enemies (Colossians 2:15). Take courage, be strong in the Lord, and fight!
John Owen famously preached, “Be killing sin or it will be killing you.” (On the Mortification of Sin) Brothers and sisters, let us be killing sin.