On this side also, as on the scientific side, the teaching of the spiritual faculty and the teaching of Revelation indicate that the physical and the spiritual worlds are one whole, and that neither is complete without the other. Science enters into Religion, and is its counterpart, and has its share to take in the conduct of life and in the formation of opinion. And the believer is bound to recognise its value and make use of its services. In conclusion, it is plain that the antagonism between Science and Religion arises much more from a difference of spirit and temper in the students of each than from any inherent opposition between the two. The man of Science is inclined to shut out from consideration a whole body of evidence, the moral and spiritual; the believer is inclined to shut out the physical. And each, from long looking at that evidence alone which properly belongs to his own subject, is inclined to hold the other cheap, and to charge on those who adduce it either blindness of understanding or wilful refusal to accept the truth. And when such a conflict arises it is the higher and not the lower, it is Faith and not Science that is likely to suffer. For the physical evidence is tangible, and the perception of it not much affected by the character of the man who studies it; the spiritual evidence stands unshaken in itself, but it is hid from eyes that have no spiritual perception, and that perception necessarily varies with the man. By what means then can a man keep his spiritual perception in full activity? And is there any test by which a man may know whether his spiritual faculty is in contact with the source of all spiritual life and is deriving from that source the full flow of spiritual power? Revelation, if it tells us anything, ought to tell us this. And the answer which Revelation makes is expressed in the words of St. Paul, 'No man can say that Jesus is the Lord, but by the Holy Ghost.' This doctrine runs through the New Testament, and it implies that one main purpose of our Lord's appearance among men was to give them in His life, His character, His example, His teaching, at once a touchstone by which they could always try their own spirits, and judge of the real condition of their own spiritual faculty, and also a vivid presentation of the supreme spiritual law by which they could for ever more and more elevate and purify and strengthen their own spiritual power and knowledge.