But in order that there shall be this continual operation of the motives and principles involved in the gospel upon our daily lives, we must have them very near our hand, ready to be laid hold of. The soldier that would march through an enemy's country, having left his gun in the hands of some camp follower, would be very likely to be shot before he got his gun. I remember going through the Red Sea; at the mouth of it where the entrance is narrow, and the currents run strong, when the ship approaches the dangerous place, the men take their stations at appointed places, and the ponderous anchors are loosened and ready to be dropped in an instant if the swirl of the current sweeps the ship into dangerous proximity to the reef. It is no time to cut the lashings of the anchors when the keel is grating on the coral rocks. And it is no time to have to look about for our weapons when the sudden temptation leaps upon us like a strong man armed. You must have them familiar to you by devout meditation, by frequent reflection, prayer, study of God's Word, if they are to be of any use to you at all. And I am afraid that about the last book in the world that loads of young men and women think of sitting down to read, systematically and connectedly, is the Bible. You will read sermons and other religious books; you will read newspapers, pamphlets, novels; but the Scripture, in its entirety, is a strange book to myriads of men who call themselves Christians. And so they are weak. If you want to be strong, 'let the Word of God abide in your hearts.'
And then if we take the other view, which at bottom is not another, of the meaning of this phrase, and apply it rather to the personal word, Jesus Christ Himself, that will yield us another exhortation, and that is, let Jesus Christ into your hearts and keep Him there, and He will make you strong. I believe that it is no piece of metaphor or an exaggerated way of putting the continuance of the influence of Christ's example and Christ's teaching upon men's hearts and minds, when He tells us that 'if any man open the door He will come in and sup with him.' I want to urge the one thought on you that it is possible, in simple literal fact, for that Divine Saviour, who was 'in Heaven' whilst He walked on earth, and walks on earth to-day when He has returned to His native Heaven, to enter into my spirit and yours, and really to abide within us, the life of our lives, 'the strength of our hearts, and our portion for ever.' The rest of us can render help to one another by strength ministered from without; Jesus Christ will come into your hearts, if you let Him, in His very sweetness and omnipotence of power, and will breathe His own grace into your weakness, strengthening you as from within. Others can help you from without, as you put an iron band round some over-weighted, crumbling brick pillar in order to prevent it from collapsing, but He will pass into us as you may drive an iron rod up through the centre of the column, and make it strong inside, and we shall be strong if Jesus Christ dwells within us. Open the door, dear young friends; let Christ come into your hearts, which He will do if you do not hinder Him, and if you ask Him. Trust Him with simple reliance upon Him for everything. Faith is 'the door'; the door is nothing of itself, but when it is opened it admits the guest. So do you let that Master come and abide, and you will hear Him say to you, as He said of old, 'Child! My grace is sufficient.' How modest He is. Sufficient!—an ocean enough to fill a thimble! 'My grace is sufficient for thee; and My strength is made perfect in weakness.'
III. Now, lastly, notice the field on which the strength is to be exercised, and the victory which it secures. 'Ye have overcome the wicked one.'
There is a battle for us all, on which I need not dwell, the conflict with evil around and with evil within, and with the prince of the embattled legions of the darkness, whom the New Testament has more clearly revealed to us. You young people have many advantages in the conflict; you have some special disadvantages as well. You have strong passions, you have not much experience, you do not know how bitter the dregs are of the cup whose foaming bubbles look so attractive, and whose upper inch tastes so sweet. But on the other hand you have not yet contracted habits that it is misery to indulge in, and, as it would seem, impossible to break, and the world is yet before you.
You cannot begin too soon to choose your side. And here is the side on which alone victory is possible for a man—the side of Jesus Christ, who will teach your hands to war and your fingers to fight.
Notice that remarkable phrase, 'Ye have overcome the wicked one.' He is talking to young Christians before whom the battle may seem to lie, and yet He speaks of their conquest as an accomplished fact, and as a thing behind them. What does that mean? It means this, that if you will take service in Christ's army, and by His grace resolve to be His faithful soldier till your life's end, that act of faith, which enrols you as His, is itself the victory which guarantees, if it be continued, the whole conquest in time.
There used to be an old superstition that—
'Who sheds the foremost foeman's life
His party conquers in the strife';
and whosoever has exercised, however imperfectly and feebly, the faith in Jesus Christ the Lord has therein conquered the devil and all his works, and Satan is henceforth a beaten Satan, and the battle, in essence, is completed even in the act of its being begun.
'This is the victory that overcometh the world, even our faith'; not only because our confidence in Jesus Christ is the blowing of the bugle that summons to warfare and shakes off the tyrant's yoke, but it is also the means by which we join ourselves to Him who has overcome, and make His victory ours. He has fought our antagonist in the wilderness once, in Gethsemane twice, on the Cross thrice; and the perfect conquest in which Jesus bound the strong man and spoiled his goods may become, and will become, your conquest, if you wed yourselves to that dear Lord by simple faith in Him.