_Third_, the faith of Abraham is compared with the faith of Abel. In the case of Abel faith is more than a realisation of the unseen. For Cain also believed in the existence of an invisible Power, and offered sacrifice. We are expressly told in the narrative[271] that "Cain brought of the fruit of the ground an offering unto the Lord." Yet he was a wicked man. The Apostle John says[272] that "Cain was of the Evil One." He had the faith which St. James ascribes to the demons, who "believe there is one God, and shudder."[273] He was possessed with the same hatred, and had also the same faith. It was the union of the two things in his spirit that made him the murderer of his brother. Our author points out very clearly the difference between Cain and Abel. Both sacrificed, but Abel desired righteousness. He had a conscience of sin, and sought reconciliation with God through his offering. Indeed, some of the most ancient authorities, for "God bearing witness in respect to his gifts," read "he bearing witness to God on the ground of his gifts;" that is, Abel bore witness by his sacrifice to God's righteousness and mercy. He was the first martyr, therefore, in two senses. He was God's witness, and he was slain for his righteousness. But, whether we accept this reading or the other, the Apostle presents Abel before us as the man who realised the great moral conception of righteousness. He sought, not the favours of an arbitrary Sovereign, not the mere mercy of an omnipotent Ruler, but the peace of the righteous God. It was through Abel that faith in God thus became the foundation of true ethics. He acknowledged the immutable difference between right and wrong, which is the moral theory accepted by the greater saints of the Old Testament, and in the New Testament forms the groundwork of St. Paul's forensic doctrine of the Atonement. Moreover, because Abel witnessed for righteousness by his sacrifice, his blood even cried from the ground unto God for righteous vengeance. For this is unquestionably the meaning of the words "and through his faith he being dead yet speaketh;" and in the next chapter[274] the Apostle speaks of "the blood of sprinkling, that speaketh a better thing than that of Abel." It was the blood of one whose faith had grasped firmly the truth of God's righteousness. His blood, therefore, cried to the righteous God to avenge his wrong. The Apostle speaks as if he were personifying the blood and ascribing to the slain man the faith which he had manifested before. The action of Abel's faith in life and, as we may safely assume, in the very article of death, retained its power with God. Every mouthing wound had a tongue. In like manner, says the writer of the Epistle, the obedience of Jesus up to and in His death made His blood efficacious for pardon to the end of time.
But Abraham's faith excelled. Abel was prompted to offer sacrifice by natural religiousness and an awakened conscience; Abraham sternly resolved to obey a command of God. He prepared to do that against which nature revolted, yea that which conscience forbade. Had not the story of Abel's faith itself loudly proclaimed the sacredness of human life? Would not Abraham, if he offered up Isaac, become another Cain? Would not the dead child speak, and his blood cry from the ground to God for vengeance? It was the case of a man to whom "God is greater than conscience." He resolved to obey at all hazards. Hereby he assured his heart--that is, his conscience--before God in that matter wherein his heart may have condemned him.[275] We, it is true, in the light of a better revelation of God's character, should at once deny, without more ado, that such a command had been given by God; and we need not fear thankfully and vehemently to declare that our absolute trust in the rightness of our own moral instincts is a higher faith than Abraham's. But he had no misgiving as to the reality of the revelation or the authority of the command. Neither do the sacred historian and the writer of the Epistle to the Hebrews question it. We also need not doubt. God met His servant at that stage of spiritual perception which he had already attained. His faith was strong in its realisation of God's authority and faithfulness. But his moral nature was not sufficiently educated to decide by the character of a command whether it was worthy of God or not. He calmly left it to Him to vindicate His own righteousness. Those who deny that God imposed such a hard task on Abraham must be prepared to solve still greater difficulties. For do not we also, in reference to some things, still require Abraham's faith that the Judge of all the earth will do right? What shall we say of His permitting the terrible and universal sufferings of all living things? What are we to think of the still more awful mystery of moral evil? Shall we say He could not have prevented it? Or shall we take refuge in the distinction between permission and command? Of the two it were easier to understand His commanding what He will not permit, as in the sacrifice of Isaac, than to explain His permission of what He cannot and will not command, as in the undoubted existence of sin.