It is a peculiarity of the sinful state, that as a general rule men are linked to evil mainly by a single correspondence. Few men break the whole law. Our natures, fortunately, are not large enough to make us guilty of all, and the restraints of circumstances are usually such as to leave a loophole in the life of each individual for only a single habitual sin. But it is very easy to see how this reduction of our intercourse with evil to a single correspondence blinds us to our true position. Our correspondences, as a whole, are not with evil, and in our calculations as to our spiritual condition we emphasize the many negatives rather than the single positive. One little weakness, we are apt to fancy, all men must be allowed, and we even claim a certain indulgence for that apparent necessity of nature which we call our besetting sin. Yet to break with the lower environment at all, to many, is to break at this single point. It is the only important point at which they touch it, circumstances or natural disposition making habitual contact at other places impossible. The sinful environment, in short, to them means a small but well-defined area. Now if contact at this point be not broken off, they are virtually in contact still with the whole environment. There may be only one avenue between the new life and the old, it may be but a small and _subterranean passage_, but this is sufficient to keep the old life in. So long as that remains the victim is not "dead unto sin," and therefore he cannot "live unto God." Hence the reasonableness of the words, "Whatsoever shall keep the whole law, and yet offend at one point, he is guilty of all." In the natural world it only requires a single vital correspondence of the body to be out of order to insure Death. It is not necessary to have consumption, diabetes, and an aneurism to bring the body to the grave if it have heart-disease. He who is fatally diseased in one organ necessarily pays the penalty with his life, though all the others be in perfect health. And such, likewise, are the mysterious unity and correlation of functions in the spiritual organism that the disease of one member may involve the ruin of the whole. The reason, therefore, with which Christ follows up the announcement of His Doctrine of Mutilation, or local Suicide, finds here at once its justification and interpretation: "If thy right eye offend thee, pluck it out, and cast it from thee: _for_ it is profitable for thee that _one_ of thy members should perish, and not that thy _whole body_ should be cast into hell. And if thy right hand offend thee, cut it off, and cast it from thee: _for_ it is profitable for thee that _one_ of thy members should perish, and not that thy _whole body_ should be cast into hell."