Hope a duty? That strikes one as somewhat strange. I very much doubt whether the ordinary run of good people do recognise it as being as imperative a duty for them to cultivate hope as to cultivate any other Christian excellence or virtue. For one man that sets himself deliberately and consciously to brighten up, and to make more operative in his daily life, the hope of future blessedness, you will find a hundred that set themselves to other kinds of perfecting of their Christian character. And yet, surely, there do not need any words to enforce the fact that this hope full of immortality is no mere luxury which a Christian man may add to the plain fare of daily duty or leave untasted according as he likes, but that it is an indispensable element in all vigorous and life-dominating Christian experience.
I do not need to dwell upon that, except just to suggest that such a vividness and continuity of calm anticipation of a certain good beyond the grave is one of the strongest of all motives to the general robustness and efficacy of a Christian life. People used to say a few years ago, a great deal more than they do now, that the Christian expectation of Heaven was apt to weaken energy upon earth, and they used to sneer at us, and talk about our 'other worldliness' as if it were a kind of weakness and defect attached to the Christian experience. They have pretty well given that up now. Anti-Christian sarcasm, like everything else, has its fashions, and other words of reproach and contumely have now taken the place of that. The plain fact is that no man sees the greatness of the present, unless he regards it as being the vestibule of the future, and that this present life is unintelligible and insignificant unless beyond it, and led up to by it, and shaped through it, there lies the eternal life beyond. The low flat plain is dreary and desolate, featureless and melancholy, when the sky above it is filled with clouds. But sweep away the cloud-rack, and let the blue arch itself above the brown moorland, and all glows into lustre, and every undulation is brought out, and tiny shy forms of beauty are found in every corner. And so, if you drape Heaven with the clouds and mists born of indifference and worldliness, the world becomes mean, but if you dissipate the cloud and unveil heaven, earth is greatened. If the hope of the grave that is to be brought onto you at the revelation of Jesus Christ shines out above all the flatness of earth, then life becomes solemn, noble, worthy of, demanding and rewarding, our most strenuous efforts. No man can, and no man will, strike such effectual blows on things present as the man, the strength of whose arm is derived from the conviction that every stroke of the hammer on things present is shaping that which will abide with him for ever.
My text not only enjoins this hope as a duty, but also enjoins the perfection of it as being a thing to be aimed at by all Christian people. What is the perfection of hope? Two qualities, certainty and continuity. Certainty; the definition of earthly hope is an anticipation of good less than certain, and so, in all the operations of this great faculty, which are limited within the range of earth, you get blended as an indistinguishable throng, 'hopes and fears that kindle hope,' and that too often kill it. But the Christian has a certain anticipation of certain good, and to him memory may be no more fixed than hope, and the past no more unalterable and uncertain than the future. The motto of our hope is not the 'perhaps,' which is the most that it can say when it speaks the tongue of earth, but the 'verily! verily!' which comes to its enfranchised lips when it speaks the tongue of Heaven. Your hope, Christian man, should not be the tremulous thing that it often is, which expresses itself in phrases like 'Well! I do not know, but I tremblingly hope,' but it should say, 'I know and am sure of the rest that remaineth, not because of what I am, but because of what He is.'
Another element in the perfection of hope is its continuity. That hits home to us all, does it not? Sometimes in calm weather we catch a sight of the gleaming battlements of 'the City which hath foundations,' away across the sea, and then mists and driving storms come up and hide it. There is a great mountain in Central Africa which if a man wishes to see he must seize a fortunate hour in the early morning, and for all the rest of the day it is swathed in clouds, invisible. Is that like your hope, Christian man and woman, gleaming out now and then, and then again swallowed up in the darkness? Brethren! these two things, certainty and continuity, are possible for us. Alas! that they are so seldom enjoyed by us.
III. And now one last word. My text speaks about the discipline or cultivation of this Christian hope.
It prescribes two things as auxiliary thereto. The way to cultivate the perfect hope which alone corresponds to the gift of God is 'girding up the loins of your mind, and being sober.' Of course, there is here one of the very few reminiscences that we have in the Epistles of the ipsissima verba of our Lord. Peter is evidently referring to our Lord's commandment to have 'the loins girt and the lamps burning, and ye yourselves like unto men that wait for their Lord.' I do not need to remind you of the Eastern dress that makes the metaphor remarkably significant, the loose robes that tangle a man's feet when he runs, that need to be girded up and belted tight around his waist, as preliminary to all travel or toil of any kind. The metaphor is the same as that in our colloquial speech when we talk about a man 'pulling himself together.' Just as an English workman will draw his belt a hole tighter when he has some special task to do, so Peter says to us, make a definite effort, with resolute bracing up and concentration of all your powers, or you will never see the grace that is hurrying towards you through the centuries. There are abundance of loose, slack-braced people up and down the world, in all departments, and they never come to any good. It is a shame that any man should have his thoughts so loosely girt and vagrant as that any briar by the roadside can catch them and hinder his advance. But it is a tenfold shame for Christian people, with such an object to gaze upon, that they should let their minds be dissipated all over the trivialities of Time, and not gather them together and project them, as I may say, with all their force towards the sovereign realities of Eternity. A sixpence held close to your eye will blot out the sun, and the trifles of earth close to us will prevent us from realising the things which neither sight, nor experience, nor testimony reveal to us, unless with clenched teeth, so to speak, we make a dogged effort to keep them in mind.
The other preliminary and condition is 'being sober,' which of course you have to extend to its widest possible signification, implying not merely abstinence from, or moderate use of, intoxicants, or material good for the appetites, but also the withdrawing of one's self sometimes wholly from, and always restraining one's self in the use of, the present and the material. A man has only a given definite quantity of emotion and interest to expend, and if he flings it all away on the world he has none left for Heaven. He will be like the miller that spoils some fair river, by diverting its waters into his own sluice, in order that he may grind some corn. If you have the faintest film of dust on the glass of the telescope, or on its mirror, if it is a reflecting one, you will not see the constellations in the heavens; and if we have drawn over our spirits the film of earthly absorption, all these bright glories above will, so far as we are concerned, cease to be.
So, brethren, there is a solemn responsibility laid upon us by the gift of that great faculty of looking before and after. What did God make you and me capable of anticipating the future for? That we might let our hopes run along the low levels, or that we might elevate them and twine them round the very pillars of God's Throne; which? I do not find fault with you because you hope, but because you hope so meanly, and about such trivial and transitory things. I remember I once saw a sea-bird kept in a garden, confined within high walls, and with clipped wings, set to pick up grubs and insects. It ought to have been away out, hovering over the free ocean, or soaring with sunlit wing to a height where earth became a speck, and all its noises were hushed. That is what some of you are doing with your hope, degrading it to earth instead of letting it rise to God; enter within the veil, and gaze upon the glory of the 'inheritance incorruptible and undefiled.'