It does not seem to me possible to recognize the claim of any historical Religion to be final and ultimate, unless it include within itself a principle of development. Let me, as briefly as I can, illustrate what I mean. It is most clearly and easily seen in the case of Morality. If the idea of a universal Religion is to mean that any detailed code of Morals laid down at a definite moment of history can serve by itself for the guidance of all human life in all after ages, we may at once dismiss the notion as a dream. In nothing did our Lord show his greatness and the fitness of his Religion for universality more than in abstaining from drawing up such a code. He confined himself to laying down a few great principles, with illustrations applicable to the circumstances of his immediate hearers. Those principles require development and application to the needs and {166} circumstances of successive ages before they can suffice to guide us in the details of conduct. To effect this development and application has been historically the work of the Church which owes its origin to the disciples whom he gathered around him. If we may accept the teaching of the fourth Gospel as at least having germs in the actual utterances of our Lord, he himself foresaw the necessity of such a development. At all events the belief in the continued work of God's Spirit in human Society is an essential principle of the Christian Religion as it was taught by the first followers of its Founder. Take for instance the case of slavery. Our Lord never condemned slavery: it is not certain that he would have done so, had the case been presented to him. Very likely his answer would have been 'Who made me a judge or a divider,' or 'Render unto Caesar the things that are Caesar's.' No one on reflection can now fail to see the essential incompatibility between slavery and the Christian spirit; yet it was perhaps fourteen hundred years before a single Christian thinker definitely enunciated that incompatibility, and more than eighteen hundred years before slavery was actually banished from all nominally Christian lands. Who can doubt that many features of our existing social system are equally incompatible with the principles of Christ's teaching, and that the {167} accepted Christian morality of a hundred years hence will definitely condemn many things which the average Christian Conscience now allows?