It' shall keep your hearts and minds.' The Apostle here blends together, in a very remarkable manner, the conceptions of peace and of war, for he employs a purely military word to express the office of this Divine peace. That word, shall keep,' is the same as is translated in another of his letters kept with a garrison--and, though, perhaps, it might be going too far to insist that the military idea is prominent in his mind, it will certainly not be unsafe to recognise its presence.
So, then, this Divine peace takes upon itself warlike functions, and garrisons the heart and mind. What does he mean by the heart and mind'? Not, as the English reader might suppose, two different faculties, the emotional and the intellectual--which is what we usually roughly mean by our distinction between heart and mind--but, as is always the case in the Bible, the heart' means the whole inner man, whether considered as thinking, willing, purposing, or doing any other inward act; and the word rendered mind' does not mean another part of human nature, but the whole products of the operations of the heart. The Revised Version renders it by thoughts,' and that is correct if it be given a wide enough application, so as to include emotions, affections, purposes, as well as thoughts' in the narrower sense. The whole inner man, in all the extent of its manifold operations, that indwelling peace of God will garrison and guard.
So note, however profound and real that Divine peace is, it is to be enjoyed in the midst of warfare. Quiet is not quiescence. God's peace is not torpor. The man that has it has still to wage continual conflict, and day by day to brace himself anew for the fight. The highest energy of action is the result of the deepest calm of heart; just as the motion of this solid, and, as we feel it to be, immovable world, is far more rapid through the abysses of space, and on its own axis, than any of the motions of the things on its surface. So the quiet heart,' which moveth altogether if it move at all,' rests whilst it moves, and moves the more swiftly because of its unbroken repose. That peace of God, which is peace militant, is unbroken amidst all conflicts. The wise old Greeks chose for the protectress of Athens the goddess of Wisdom, and whilst they consecrated to her the olive branch, which is the symbol of peace, they set her image on the Parthenon, helmed and spear-bearing, to defend the peace, which she brought to earth. So this heavenly Virgin, whom the Apostle personifies here, is the winged sentry, all skilful in the wars,' who enters into our hearts and fights for us to keep us in unbroken peace.
It is possible day by day to go out to toll and care and anxiety and change and suffering and conflict, and yet to bear within our hearts the unalterable rest of God. Deep in the bosom of the ocean, beneath the region where winds howl and billows break, there is calm, but the calm is not stagnation. Each drop from these fathomless abysses may be raised to the surface by the power of the sunbeams, expanded there by their heat, and sent on some beneficent message across the world. So, deep in our hearts, beneath the storm, beneath the raving winds and the curling waves, there may be a central repose, as unlike stagnation as it is unlike tumult; and the peace of God may, as a warrior, keep our hearts and minds in Christ Jesus.
What is the plain English of that metaphor? Just this, that a man who has that peace as his conscious possession is lifted above the temptations that otherwise would drag him away. The full cup, filled with precious wine, has no room in it for the poison that otherwise might be poured in. As Jesus Christ has taught us, there is such a thing as cleansing a heart in some measure, and yet because it is empty,' though it is swept and garnished,' the demons come back again. The best way to be made strong to resist temptation, is to be lifted above feeling it to be a temptation, by reason of the sweetness of the peace possessed. Oh! if our hearts were filled, as they might be filled, with that divine repose, do you think that the vulgar, coarse-tasting baits which make our mouths water now would have any power over us? Will a man who bears in his hands jewels of priceless value, and knows them to be such, find much temptation when some imitation stone, made of coloured glass and a tinfoil backing, is presented to him? Will the world draw us away if we are rooted and grounded in the peace of God. Geologists tell us that climates are changed and creatures are killed by the slow variation of level in the earth. If you and I can only heave our lives up high enough, the foul things that live down below will find the air too pure and keen for them, and will die and disappear; and all the vermin that stung and nestled down in the fiats will be gone when we get up to the heights. The peace of God will keep our hearts and thoughts.
