(1) It is involved in His doctrine of man. He who made so much of man could not make light of man's sin. It is because man is so great that his sin is so grave. No one can understand the New Testament doctrine of sin who does not read it in the light of the New Testament doctrine of man. When we think of man as Christ thought of him, when we see in him the possibilities which Christ saw, the Scripture language concerning sin becomes intelligible enough; until then it may easily seem exaggerated and unreal. It is the height for which man was made and meant which measures the fall which is involved in his sin. (2) Call to mind the language in which Christ set forth the effects of sin. He spoke of men as blind, as sick, as dead; He said they were as sheep gone astray, as sons that are lost, as men in debt which they can never pay, in bondage from which they can never free themselves. The very accumulation of metaphors bears witness to Christ's sense of the havoc wrought by sin. Nor are they metaphors merely; they are His reading of the facts of life as it lay before Him. Let me refer briefly to two of them, (_a_) Christ spoke of men as in bondage through their sin. "If," He said once, "ye abide in My word ... ye shall know the truth, and the truth shall make you free." And straightway jealous Jewish ears caught at that word "free." "Free?" they cried, "Free? we be Abraham's seed, and have never yet been in bondage to any man: how sayest Thou, Ye shall be made free?" Yet even as they lift their hands in protest Christ hears the clink of their fetters: "Verily, verily, I say unto you, every one that committeth sin is the bond-servant--the slave--of sin." "To whom ye present yourselves as servants unto obedience, his servants--his slaves--ye are whom ye obey; whether of sin unto death, or of obedience unto righteousness." Apostle and Lord mean the same thing, true of us as it was true of the Jews: "Every one that committeth sin is the slave of sin." (_b_) Further, Christ says, men are in debt through their sin. In one parable He tells us of a certain lender who had two debtors; the one owed five hundred pence, and the other fifty; but neither had wherewith to pay. In another parable we hear of a servant who owed his lord ten thousand talents--a gigantic sum, vague in its vastness, "millions" as we might say--and he likewise had not wherewith to pay. Further, in the application of each parable, it is God to whom this unpayable debt is due. Now, it is just at this point that our sense of sin to-day is weakest. The scientist, the dramatist, the novelist are all proclaiming our responsibility toward them that come after us; with pitiless insistence they are telling us that the evil that men do lives after them, that it is not done with when it is done. Yet, with all this, there may be no thought of God. It is the consciousness not merely of responsibility, but of responsibility God-ward, which needs to be strengthened. When we sin we may wrong