That question might be answered in a great variety of ways, but I purpose for the present to answer it by confining myself to this letter, and seeing what we can find out about the man to whom it was addressed. I rejoiced greatly when the brethren came and testified of the truth that is in thee.' There is the starting-point of true health of soul. That soul, and only that soul, is prosperous, in which what the Apostle calls here the truth' is lodged and rooted ; and by' the truth' he means, of course, the whole great revelation of God in Jesus Christ; and eminently Jesus Christ Himself who is the embodied Truth. Whether we take the phrase as meaning the abiding of Jesus Christ in the heart, or whether we take it as meaning more simply the incorporation into the very substance of the being, of the motives and principles that lie in the Gospel, comes to pretty much the same thing. The one thing which makes a man's soul healthy is to get Jesus Christ into it. That acts like an amulet that banishes all diseases and corruptions. That is like the preserving salt which, rubbed into a perishable substance, arrests corruption and makes food sweet and savoury. It is the engrafted word that is able to save the soul, and howsoever many other things may contribute to the inner well-being and prosperity of a man, such as intellectual acquirements, refined tastes, the gratification of pure affections, the fulfilment of innocent and legitimate hopes, and the like, the one thing that makes the soul prosperous is to have Christ in His word deeply planted and inseparably enshrined in its personality and being.
And how is that enshrining to be brought about? Alas, we all know the way a great deal better than we practise it. The prosperous soul is the soul that has opened itself in docile obedience for the entrance of the quickening and cleansing word. And just as a flower will open its calyx in the sunshine, and being opened by the sunshine playing upon its elastic filaments, will, because it is opened, receive into itself the sun that opened it and so grow ; in like manner, that heart that disparts itself at the touch of Christ's hand, and welcomes Him into the inner chambers and shrine of its being, will find that where He comes He brings warmth and fragrance and growth and all blessing. The prosperous soul is the Christ-inhabited soul. By willing reception, by patient waiting, by the study of God's word, by the endeavour to bring ourselves more and more under the influence of the truth as it is in Jesus, does that truth that makes prosperity take up its abode within us.
But the letter gives another of the characteristics of the truly prosperous and healthy soul. Thy brethren came and testified of the truth that is in thee, even as thou walkest in the truth.' The Apostle is not afraid of a confusion of metaphors which shocks sticklers for rhetorical propriety. The truth is, first of all, regarded as being in the man ; and then it is regarded as being a road on which, and within the limits of which he walks, or an atmosphere in which he moves. The incongruity is no real incongruity, but it strikingly brings out the great and blessed fact of the Gospel that the man who has the grace of God, the truth as it is in Jesus, within him, thereby finds that there is prepared for him a path within the limits of that truth in which he can safely walk. There will be progress if there be prosperity. The prosperous spirit is the active and advancing spirit, not content merely with sitting and saying, I have the truth in my soul. Thy word have I hid in my heart that I sin not against Thee'; but recognising that that truth is the law of his life, and prescribes for him a course of conduct. The prosperous soul is the soul that confines its activity within the fence which the truth as it is in Jesus,' who is the pattern, and the motive, and the law, and the power, has laid down for us; and within those limits makes daily and hourly advance to a more entire conformity with the example of the Lord. The prosperous soul is the soul that walks--not that sits idle--for action is the end of thought, and the purpose of the truth is to make men good, and not mere4y wise--a soul that acts and advances, yet never passing out of the atmosphere of the Gospel, nor going beyond the principles and motives that are laid down there.
There is a third characteristic in this letter, which we may also take for an illustration of the Apostle's idea. For he says : Thou doest faithfully whatsoever thou doest.'
Now faithfully' is not here used in the sense of righteously discharging all obligations and fulfilling one's stewardship, but it means something deeper than that. The root idea is whatever thou doest thou doest as a work of Christian faith'; or, to put it into other words, the prosperous soul is the soul all whose activity is based upon that one great truth made its own by faith, that Jesus Christ loves it, and so is all the result of trust in Him. Faith in Christ is the mother-tincture, out of which every virtue can be compounded, according to the liquid to which you add it. The basis of all, the stock' from which all the rest is really made, is the act of faith in Jesus Christ. And so the prosperous soul is the soul that has the truth in it, and walks in the truth which it has, and does everything because it trusts in the living God and in Jesus Christ His Son.
Is that your notion of the ideal of human nature, of the true and noble prosperity of an immortal spirit? Unless it be you have yet to learn the loftiest elevation and the fairest beauty that are possible for men. The prosperous soul filled with Christ within, and walking with Christ by its side, and drawing laws and motives, pattern and power from Him, is the soul that truly has fulfilled its ideal, and is journeying on the right road. For that is the literal meaning of the word that is rendered here prosper'; journeying on the right road to the true goal of human nature.
