And if we break up that complex thought into its elements, it just comes to this, first, that trust makes steadfastness. Most men's lives are blown about by winds of circumstance, directed by gusts of passion, shaped by accidents, and are fragmentary and jerky, like some ship at sea with nobody at the helm, heading here and there, as the force of the wind or the flow of the current may carry them. If my life is to be steadied, there must not only be a strong hand at the tiller, but some outward object which shall be for me the point of aim and the point of rest. No man can steady his life except by clinging to a holdfast without himself. Some of us look for that stay in the fluctuations and fleetingnesses of creatures; and some of us are wiser and saner, and look for it in the steadfastness of the unchanging God. The men who do the former are the sport of circumstances, and the slaves of their own natures, and there is no consistency in noble aim and effort throughout their lives, corresponding to their circumstances, relations, and nature. Only they who stay themselves upon God, and get down through all the superficial shifting strata of drift and gravel, to the base-rock, are steadfast and solid.
My brother, if you desire to govern yourself, you must let God govern you. If you desire to be firm, you must draw your firmness from the unchangingness of that divine nature which you grasp. How can a willow be stiffened into an iron pillar? Only—if I might use such a violent metaphor—when it receives into its substance the iron particles that it draws from the soil in which it is rooted. How can a bit of thistledown be kept motionless amidst the tempest? Only by being glued to something that is fixed. What do men do with light things on deck when the ship is pitching? Lash them to a fixed point. Lash yourselves to God by simple trust, and then you will partake of His serene immutability in such fashion as it is possible for the creature to participate in the attributes of the Creator.
And then, still further, the steadfast mind—steadfast because it trusts—is rewarded in that it is kept by God. It is no mere mistake in the order of his thought which leads this prophet to allege that it is the steadfast mind which God keeps. For, though it is true, on the one hand, that the real fixity and solidity of a human character come more surely and fully through trust in God than by any other means, on the other hand it is true that, in order to receive the full blessed effects of trust into our characters and lives, we must persistently and doggedly keep on in the attitude of confidence. If a man holds out to God a tremulous hand with a shaking cup in it, which Le sometimes presents and sometimes twitches back, it is not to be expected that God will pour the treasure of His grace into such a vessel, with the risk of most of it being spilt upon the ground. There must be a steadfast waiting if there is to be a continual flow.
It is the mind that cleaves to God which God keeps. I suppose that there was floating before Paul's thoughts some remembrance of this great passage of the evangelical prophet when he uttered his words, which ring so strikingly with so many echoes of them, when he said, 'The peace of God which passeth understanding shall keep your hearts and minds in Christ Jesus.' It is the steadfast mind that is kept in perfect peace. If we 'keep ourselves,' by that divine help which is always waiting to be given,' in the' faith and 'love of God,' He will keep us in the hour of temptation, will keep us from falling, and will garrison our hearts and minds in Christ Jesus.
And then, still further, this faithful, steadfast heart and mind, kept by God, is a mind filled with deepest peace. There is something very beautiful in the prophet's abandoning the attempt to find any adjective of quality which adequately characterises the peace of which he has been speaking. He falls back upon the expedient which is the confession of the impotence of human speech worthily to portray its subject when he simply says, 'Thou shalt keep in peace, peace … because he trusteth in Thee.' The reduplication expresses the depth, the completeness of the tranquillity which flows into the heart, Such continuity, wave after wave, or rather ripple after ripple, is possible even for us. For, dear brethren, the possession of this deep, unbroken peace does not depend on the absence of conflict, on distraction, trouble, or sorrow, but on the presence of God. If we are in touch with Him, then our troubled days may be calm, and beneath all the surface tumult there may be a centre of rest. The garrison in some high hill-fortress looks down upon the open where the enemy's ranks are crawling like insects across the grass, and scarcely hears the noise of the tumult, and no arrow can reach the lofty hold. So, up in God we may dwell at rest whate'er betide. Strange that we should prefer to live down amongst the unwalled villages, which every spoiler can harry and burn, when we might climb, and by the might and the magic of trust in the Lord bring round about ourselves a wall of fire which shall consume the poison out of the evil, even whilst it permits the sorrow to do its beneficent work upon us!
III. Note again the worthiness of the divine Name to evoke, and the power of the divine character to reward, the trust.
We pass to the last words of my text:—'In the Lord Jehovah is everlasting strength.'
Now I suppose we all know that the words feebly rendered in the Authorised Version 'everlasting strength' are literally 'the Rock of Ages'; and that this verse is the source of that hallowed figure which, by one of the greatest of our English hymns, is made familiar and immortal to all English-speaking people.
But there is another peculiarity about the words on which I dwell for a moment, and that is, that here we have, for one of the only two times in which the expression occurs in Scripture, the great name of Jehovah reduplicated. 'In Jab Jehovah is the Rock of Ages.' In the former verse the prophet had given up in despair the attempt to characterise the peace which God gave, and fallen back upon the expedient of naming it twice over. In this verse, with similar eloquence of reticence, he abandons the attempt to describe or characterise that great Name, and in adoration, contents himself with twice taking it upon his lips, in order to impress what he cannot express, the majesty and the sufficiency of that name.
What, then, is the force of that name? We do not need, I suppose, to do more than simply remind you that there are two great thoughts communicated by that self-revelation of God which lies in it. Jehovah, in its literal grammatical signification, puts emphasis upon the absolute, underived, and therefore unlimited, unconditioned, unchangeable, eternal being of God. 'I AM THAT I AM.' Men and creatures are what they are made, are what they become, and some time or other cease to be what they were. But God is what He is, and is because He is. He is the Source, the Motive, the Law, the Sustenance of His own Being; and changeless and eternal He is for ever. In that name is the Rock of Ages.