How is the Christian soldier made? By going to chapel, by reading the Bible, by singing hymns, by talking about religion? Just as much as the veteran warrior is made at Aldershot or Southsea. He must go into the battle and fight hand to hand with Satan and the flesh; he must endure cruel wounds given by both outward and inward foes; he must lie upon the cold ground of desolation and desertion; he must rush up the breach when called to storm the castles of sin and evil, and never "yield or quit the field," but press on determined to win the day or die. In these battles of the Lord, in due time he learns how to handle his weapons, how to call upon God in supplication and prayer, to trust in Jesus Christ with all his heart, to beat back Satan, to crucify self, and live a life of faith in the Son of God.
Religion is not a matter of theory or of doctrine: it is to be in the thick of the battle, fighting with the enemy hand to hand, foot to foot, shoulder to shoulder. This actual, not sham, warfare makes the Christian soldier hardy, strengthens the muscles of his arm, gives him skill to wield his weapons, and power sometimes to put his enemies to flight. Thus it "works endurance," makes him a veteran, so that he is no longer a raw recruit, but one able to fight the Lord's battles and "to endure hardness, as a good soldier of Jesus Christ." What then have been your best friends? Your trials. Where have you learnt your best lessons? In the school of temptation. What has made you look to Jesus? A sense of your sin and misery. Why have you hung upon the word of promise? Because you had nothing else to hang upon.
Thus, could you look at the results, you would see this, that trials and temptations produced upon your spirit these two effects; that they tried your faith, and that sometimes to the uttermost, so that in the trial it seemed as if all your faith were gone; and yet they have wrought patience, they have made you endure. Why have you not long ago given up all religion? Have your trials made you disposed to give it up? They have made you hold all the faster by it. Have your temptations induced you to let it go as a matter of little consequence? Why, you never had more real religion than when you were tried whether you had any; and never held faith with a tighter grasp than when Satan was pulling it all away. The strongest believers are not the men of doctrine, but the men of experience; not the boasters, but the fighters; not the parade officers in all the millinery of spotless regimentals, but the tattered, soiled, wounded, half-dead soldiers that give and take no quarter from sin or satan.