In the first place, there is that instantaneous but abiding reaction which is called the bad conscience--the sense of guilt, of being answerable to God for sin. The sin may be an act which is committed in a moment, but in this aspect of it, at least, it does not fade into the past. An animal may have a past, for anything we can tell, and naturalistic interpreters of sin may believe that sin dies a natural death with time, and need not trouble us permanently; but this is not the voice of conscience, in which alone sin exists, and which alone can tell us the truth about it. The truth is that the spiritual being has no past. Just as he is continually with God, his sin is continually with him. He cannot escape it by not thinking. When he keeps silence, as the Psalmist says--and that is always his first resource, as though, if he were to say nothing about it, God might say nothing about it, and the whole thing blow over--it devours him like a fever within: his bones wax old with his moaning all day long. This sense of being wrong with God, under His displeasure, excluded from His fellowship, afraid to meet Him yet bound to meet Him, is the sense of guilt. Conscience confesses in it its liability to God, a liability which in the very nature of the case it can do nothing to meet, and which therefore is nearly akin to despair. But the bad conscience, real as it is, may be too abstractly interpreted. Man is not a pure spirit, but a spiritual being whose roots strike to the very depths of nature, and who is connected by the most intimate and vital relations not only with his fellow-creatures of the same species, but with the whole system of nature in which he lives. The moral constitution in which he has his being comprehends, if we may say so, nature in itself: the God who has established the moral order in which man lives, has established the natural order also as part of the same whole with it. In some profound way the two are one. We distinguish in man, legitimately enough, between the spiritual and the physical; but man is one, and the universe in which he lives is one, and in man's relation to God the distinction of physical and spiritual must ultimately disappear. The sin which introduces disorder into man's relations to God produces reactions affecting man as a whole--not reactions that, as we sometimes say, are purely spiritual, but reactions as broad as man's being and as the whole divinely constituted environment in which it lives. I am well aware of the difficulty of giving expression to this truth, and of the hopelessness of trying to give expression to it by means of those very distinctions which it is its nature to transcend. The distinctions are easy and obvious; what we have to learn is that they are not final. It seems so conclusive to say, as some one has done in criticising the idea of atonement, that spiritual transgressing brings spiritual penalty, and physical brings physical; it seems so conclusive,