The Shield of Faith
'Above all, taking the shield of faith, whereby ye shall be able to quench all the fiery darts of the wicked.' -- Eph. vi.16.

There were two kinds of shields in use in ancient warfare -- one smaller, carried upon the arm, and which could be used, by a movement of the arm, for the defence of threatened parts of the body in detail; the other large, planted in front of the soldier, fixed in the ground, and all but covering his whole person. It is the latter which is referred to in the text, as the word which describes it clearly shows. That word is connected with the Greek word meaning 'door,' and gives a rough notion of the look of the instrument of defence -- a great rectangular oblong, behind which a man could stand untouched and untouchable. And that is the kind of shield, says Paul, which we are to have -- no little defence which may protect some part of the nature, but a great wall, behind which he who crouches is safe.

'Above all' does not mean here, as superficial readers take it to mean, most especially and primarily, as most important, but it simply means in addition to all these other things. Perhaps with some allusion to the fact that the shield protected the breastplate, as well as the breastplate protected the man, there may be a reference to the kind of double defence which comes to him who wears that breastplate and lies behind the shelter of a strong and resolute faith.

I. Now, looking at this metaphor from a practical point of view, the first thing to note is the missiles, 'the fiery darts of the wicked.'

Archaeologists tell us that there were in use in ancient warfare javelins tipped with some kind of combustible, which were set on fire, and flung, so that they had not only the power of wounding but also of burning; and that there were others with a hollow head, which was in like manner filled, kindled, and thrown into the ranks of the enemy. I suppose that the Apostle's reason for specifying these fiery darts was simply that they were the most formidable offensive weapons that he had ever heard of. Probably, if he had lived to-day, he would have spoken of rifle-bullets or explosive shells, instead of fiery darts. But, though probably the Apostle had no further meaning in the metaphor than to suggest that faith was mightier than the mightiest assaults that can be hurled against it, we may venture to draw attention to two particulars in which this figure is specially instructive and warning. The one is the action of certain temptations in setting the soul on fire; the other is the suddenness with which they assail us.

'The fiery darts.' Now, I do not wish to confine that metaphor too narrowly to any one department of human nature, for our whole being is capable of being set on fire, and 'set on fire of hell,' as James says. But there are things in us all to which the fiery darts do especially appeal: desires, appetites, passions; or -- to use the word which refined people are so afraid of, although the Bible is not, 'lusts -- which war against the soul,' and which need only a touch of fire to flare up like a tar-barrel, in thick foul smoke darkening the heavens. There are fiery darts that strike these animal natures of ours, and set them all aflame.

But, there are other fiery darts than these. There are plenty of other desires in us: wishes, cowardices, weaknesses of all sorts, that, once touched with the devil's dart, will burn fiercely enough. We all know that.

Then there is the other characteristic of suddenness. The dart comes without any warning. The arrow is invisible until it is buried in the man's breast. The pestilence walks in darkness, and the victim does not know until its poison fang is in him. Ah! yes! brethren, the most dangerous of our temptations are those that are sprung upon us unawares. We are going quietly along the course of our daily lives, occupied with quite other thoughts, and all at once, as if a door had opened, not out of heaven but out of hell, we are confronted with some evil thing that, unless we are instantaneously on our guard, will conquer us almost before we know. Evil tempts us because it comes to us, for the most part, without any beat of drum or blast of trumpet to say that it is coming, and to put us upon our guard. The batteries that do most harm to the advancing force are masked until the word of command is given, and then there is a flash from every cannon's throat and a withering hail of shot that confounds by its unexpectedness as well as kills by its blow. The fiery darts that light up the infernal furnace in a man's heart, and that smite him all unawares and unsuspecting, these are the weapons that we have to fear most.

II. Consider next, the defence: 'the shield of faith.'

Now, the Old Testament says things like this: 'Fear not, Abraham; I am thy Shield.' The psalmist invoked God, in a rapturous exuberance of adoring invocations, as his fortress, and his buckler, and the horn of his salvation, and his high tower. The same psalm says, 'The Lord is a shield to all them that put their trust in Him'; and the Book of Proverbs, which is not given to quoting psalms, quotes that verse. Another psalm says, 'The Lord God is a sun and shield.'

And then Paul comes speaking of 'the shield of faith.' What has become of the other one? The answer is plain enough. My faith is nothing except for what it puts in front of me, and it is God who is truly my shield; my faith is only called a shield, because it brings me behind the bosses of the Almighty's buckler, against which no man can run a tilt, or into which no man can strike his lance, nor any devil either. God is a defence; and my trust, which is nothing in itself, is everything because of that with which it brings me into connection. Faith is the condition, and the only condition, of God's power flowing into me, and working in me. And when that power flows into me, and works in me, then I can laugh at the fiery darts, because 'greater is He that is with us than all they that are with them.'

So all the glorification which the New Testament pours out upon the act of faith properly belongs, not to the act itself, but to that with which the act brings us into connection. Wherefore, in the first Epistle of John, the Apostle, who recorded Christ's saying, 'Be of good cheer; I have overcome the world,' translates it into, 'This is the victory that overcometh the world' -- not, our Christ, but -- 'even our faith.' And it overcomes because it binds us in deep, vital union with Him who has overcome; and then all His conquering power comes into us.

That is the explanation and vindication of the turn which Paul gives to the Old Testament metaphor here, when he makes our shield to be faith. Suppose a man was exercising trust in one that was unworthy of it, would that trust defend him from anything? Suppose you were in peril of some great pecuniary loss, and were saying to yourself, 'Oh! I do not care. So-and-so has guaranteed me against any loss, and I trust to him,' and suppose he was a bankrupt, what would be the good of your trust? It would not bring the money back into your pocket. Suppose a man is leaning upon a rotten support; the harder he leans the sooner it will crumble. So there is no defence in the act of trust except what comes into it from the object of trust; and my faith is a shield only because it grasps the God who is the shield.

But, then, there is another side to that thought. My faith will quench, as nothing else will, these sudden impulses of fiery desires, because my faith brings me into the conscious presence of God, and of the unseen realities where He dwells. How can a man sin when God's eye is felt to be upon him? Suppose conspirators plotting some dark deed in a corner, shrouded by the night, as they think; and suppose, all at once, the day were to blaze in upon them, they would scatter, and drop their designs. Faith draws back the curtain which screens off that unseen world from so many of us, and lets in the light that shines down from above and shows us that we are compassed about by a cloud of witnesses, and the Captain of our Salvation in the midst of them. Then the fiery darts fizzle out, and the points drop off them. No temptation continues to flame when we see God.

They have contrivances in mills that they call 'automatic sprinklers.' When the fire touches them it melts away a covering, and a gas is set free that puts the fire out. And if we let in the thought of God, it will extinguish any flame. 'The sun puts out the fire in our grates,' the old women say. Let God's sun shine into your heart, and you will find that the infernal light has gone out. The shield of faith quenches the fiery darts of the 'wicked.'

Yes! and it does it in another way. For, according to the Epistle to the Hebrews, faith realises 'the things hoped for,' as well as 'unseen.' And if a man is walking in the light of the great promises of Heaven, and the great threatenings of a hell, he will not be in much danger of being set on fire, even by 'the fiery darts of the wicked.' He that receives into his heart God's strength; he that by faith is conscious of the divine presence in communion with him; he that by faith walks in the light of eternal retribution, will triumph over the most sudden, the sharpest, and the most fiery of the darts that can be launched against him.

III. The Grasp of the Shield.

'Taking the shield,' then, there is something to be done in order to get the benefit of that defence. Now, there are a great many very good people at present who tell Christian men that they ought to exercise faith for sanctifying, as they exercise it for justifying and acceptance. And some of them -- I do not say all -- forget that there is effort needed to exercise faith for sanctifying; and that our energy has to be put forth in order that a man may, in spite of all resistance, keep himself in the attitude of dependence. So my text, whilst it proclaims that we are to trust for defence against, and victory over, recurring temptations, just as we trusted for forgiveness and acceptance at the beginning, proclaims also that there must be effort to grasp the shield, and to realise the defence which the shield gives to us.

For to trust is an act of the heart and will far more than of the head, and there are a great many hindrances that rise in the way of it; and to keep behind the shield, and not depend at all upon our own wit, our wisdom, or our strength, but wholly upon the Christ who gives us wit and wisdom, and strengthens our fingers to fight -- that will take work! To occupy heart and mind with the object of faith is not an easy thing.

So, brethren, effort to compel the will and the heart to trust; effort to keep the mind in touch with the verities and the Person who are the objects of our faith; and effort to keep ourselves utterly and wholly ensconced behind the Shield, and never to venture out into the open, where our own arm has to keep our own heads, but to hang wholly upon Him -- these things go to 'taking' the shield of faith. And it is because we fail in these, and not because there are any holes or weak places in the shield, that so many of the fiery darts find their way through, and set on fire and wound us. The Shield is impregnable, beaten as we have often been. 'This is the victory that overcometh the world' -- and the devil and his darts -- 'even our faith.'

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