The question comes to us all; and in these days of unsettlement it is well to have some clear understanding of what is the 'irreducible minimum' of Christian teaching. I take it that it lies here. There are two opposite errors which, like all opposite errors, are bolted together, and revolve round a common centre. The one of them is the extreme conservative tendency which regards every pin and bolt of the tabernacle as if it were equally sacred with the altar and the ark. And the other is the tendency which christens itself 'liberal and progressive,' and which is always ready to exchange old lamps, though they have burnt brightly in the past, for new ones that are as yet only glittering metal and untried. In these days, when it is a presumption against any opinion, that our fathers believed it (an error into which young people are most prone to fall), and when, by the energy of contradiction, that error has evoked, and is evoking, the opposite exaggeration that adheres to all that is traditional, to all that has been regarded as belonging to the essentials of the Christian faith, and so is fearful, trembling for the Ark of God when there is no need, let us fall back upon these great words of the Master, and see that the things which constitute the living heart of His message and gift to the world are neither more nor less than these three: the supernatural Christ, the life which He imparts, and the condition on which He bestows it. 'Believest thou this?' If you do, you need take very little heed of the fluctuations of contemporary opinion as to other matters, valuable and important as these may be in their place; and may let men say what they will about disputed questions—about the method by which the vehicle of revelation has been created and preserved, about the regulation of the external forms of the Church, about a hundred other things that men often lose their tempers and spoil their Christianity by fighting for, and fall back upon the great central verity, a Christ from above, the Giver of Life to all that put their trust in Him.
Let me expand this question for you. 'We all have sinned and come short of the glory of God'—'believest thou this?' 'We must all appear before the judgment-seat of Christ'—'believest thou this?' 'God so loved the world that He gave His only begotten Son, that whosoever believeth on Him should not perish'—'believest thou this?' 'The Son of Man came… to give His life a ransom for many'—'believest thou this?' 'Being justified by faith we have peace with God through our Lord Jesus Christ'—'believest thou this?' 'Now is Christ risen from the dead, and become the first fruits of them that slept'—'believest thou this?' 'I go to prepare a place for you'—'believest thou this?' 'Where I am there shall also My servant be'—'believest thou this?' 'So shall we ever be with the Lord'—'believest thou this?' That is Christianity; and not theories about inspiration, and priesthood, and sacramental efficacy, or any of the other thorny questions which have, in the course of ages, started up. Here is the living centre; hold fast, I beseech you, by it.
Then, again, the significance of this question is in the direction of making clear for us the way by which men lay hold of these great truths. The truths are of such a sort as that merely to say, 'Oh yes, I believe it; it is quite true!' is by no means sufficient. If a man tells me that two parallel lines produced ever so far will never meet, I say, 'Yes, I believe it'; and there is nothing more to be done or said. If a man says to me, 'Two and two make four,' I say, 'Yes'; and there my assent ends. If a man says, 'It is right to do right,' it is quite clear that the attitude of intellectual assent, which was quite enough for the other order of statements, is not enough for this one; and to merely say, 'Oh yes, it is right to do right,' is by no means the only attitude which we ought to take in regard to such a truth. And if God comes to me and says, 'Thou art a sinful man, and Jesus Christ has died for thee; and if thou takest Him for thy Saviour thou shalt be saved in this life, and saved for ever,' it is just as clear that no mere acceptance of the saying as a verity exhausts my proper attitude in reference to it. Or to come to plainer words, no man will really, and out and out, and adequately, believe this gospel unless he does a great deal more than assent to it or refrain from contradicting it.