Our second group is represented roughly by the Hymn Book. The evidential value of a good hymn book will stand investigation. Of course a great many hymns are mere copies, and poor copies; but the Hymn Book at its best is a collection of first-hand records of experience.[33] In the story of the Christian Church doxology comes before dogma. When the writer of the Apocalypse breaks out at the very beginning: "Unto him that loved us and washed[34] us from our sins in his own blood . . . be glory and dominion for ever and ever" (Rev. 1:5), he is recording a great experience; and his doxology leads him on to an explanation of what he has felt and known--to an intellectual judgement and an appreciation of Christ. The order is experience,--happiness and song--and then reflection. The love and the cleansing, and the joy, supply the materials on which thought has to work. We have always to remember that thought does not strictly supply its own material, however much it may help us to find it. Philosophy and theology do not give us our facts. Their function is to group and interpret them. Our third group of records is given to us by the men of the Reformation. We have there two great movements side by side. There is Bible translation, which means, in plain language, a decision or conviction on the part of scholars and thinkers, that the knowledge of the historical Jesus, and of men's first experiences of him, is of the highest importance in the Christian life. The whole Reformation follows, or runs parallel with, that movement. It is essentially a new exploration of what Jesus Christ can do and of what he can be.