But these realities are obscured and thrust aside by a thousand pretentious frivolities which claim our immediate attention and interest. We are in the world, and day by day the world insists that we shall consider it the great reality. Christ had conquered it and was leaving it. Why, then, did He not take with Him all whom He had won to Himself out of the world? He did not do so because they had a work to accomplish which could only be accomplished in the world. As He had consecrated Himself to the work of making known the Father, so must they consecrate themselves to the same work. As Christ in His own person and life had brought clear before their minds the presence of the Father, so must they by their person and life manifest in the world the existence and the grace of Christ. They must make permanent and universal the revelation He had brought, that all the world might believe that He was the true representative of God. Christ had lighted them, and with their light they were to kindle all men, till the world was full of light. A share in this work is given to each of us. We are permitted to mediate between God and men, to carry to some the knowledge which gives life eternal. It is made possible to us to be benefactors in the highest kind, to give to this man and that a God. To parents it is made possible to fill the opening and hungry mind of their child with a sense of God which will awe, restrain, encourage, gladden him all his life through. To relieve the wants of to-day, to refresh any human spirit by kindness, and to forward the interests of any struggler in life is much; but it is little compared with the joy and solid utility of disclosing to a human soul that which he at last recognises as Divine, and before which at last he bows in spontaneous adoration and absolute trust. To the man who has long questioned whether there is a God, who has doubted whether there is any morally perfect Being, any Spirit existent greater and purer than man, you have but to show Christ, and through His unconquerable love and untemptable holiness reveal to him a God.
But as it was not by telling men about God that Christ convinced men that somewhere there existed a holy God who cared for them, but by showing God's holiness and love present to them in His own person, so our words may fail to accomplish much if our life does not reveal a presence men cannot but recognise as Divine. It was by being one with the Father Christ revealed Him; it was the Father's will His life exhibited. And the extension of this to the whole world of men is the utmost of Christ's desire. All will be accomplished when all men are one, even as Christ and the Father are already one.
This text is often cited by those who seek to promote the union of churches. But we find it belongs to a very different category and much higher region. That all churches should be under similar government, should adopt the same creed, should use the same forms of worship, even if possible, is not supremely desirable; but real unity of sentiment towards Christ and of zeal to promote His will is supremely desirable. Christ's will is all-embracing; the purposes of God are wide as the universe, and can be fulfilled only by endless varieties of dispositions, functions, organisations, labours. We must expect that, as time goes on, men, so far from being contracted into a narrow and monotonous uniformity, will exhibit increasing diversities of thought and of method, and will be more and more differentiated in all outward respects. If the infinitely comprehensive purposes of God are to be fulfilled, it must be so. But also, if these purposes are to be fulfilled, all intelligent agents must be at one with God, and must be so profoundly in sympathy with God's mind as revealed in Christ that, however different one man's work or methods may be from another's, God's will shall alike be carried out by both. If this will can be more freely carried out by separate churches, then outward separation is no great calamity. Only when outward separation leads one church to despise or rival or hate another is it a calamity. But whether churches abide separate or are incorporated in outward unity, the desirable thing is that they be one in Christ, that they have the same eagerness in His service, that they be as regiments of one army fighting a common foe and supporting one another, diverse in outward appearance, in method, in function, as artillery, infantry, cavalry, engineers, or even as the army and navy of the same country, but fighting for one flag and one cause, and their very diversity more vividly exhibiting their real unity.