Wherefore, he that does well must first be good: "He that doeth righteousness is [must first be] righteous" (1 John 3:7). He is righteous first; he is righteous even as Christ is righteous, because Christ himself is the righteousness of such a person. And so on the contrary; the reason why some men's good deeds are accursed of God, it is because in truth, and according to the law, the Lord finds sin in them; which sins he cannot pardon, because he finds them not in Christ. Thus they being evil for want of the righteousness of the Son of God, they worship God as sinners, according to that of the apostle, Because they are not good, therefore they do not good, no, not one of them (Rom 3:10-12).

The way therefore to do well, it is first to receive the mercy of God in Christ; which act of thine will be more pleasing to the Divine Majesty, than all whole burnt-offerings and sacrifices: "I will have mercy [saith God] I will have mercy, and not sacrifice" (Matt 9:13; 12:7). This Cain did not understand, therefore he goes to God in his sins, and without faith in the mercy of God through Christ, he offereth his sacrifice. Wherefore because his sacrifice could not take away his sin, therefore it still abode upon him.

But "if thou doest not well, sin lieth at the door." This reasoning therefore was much to Cain's condition; he would be wroth, because God did not accept his offering, and yet he did not well: Now, if he had done well, God, by receiving of his brother's sacrifice, shows, he would have accepted him; for this is evident, they were both alike by nature; their offerings also were in themselves one as holy as the other: How then comes it to pass that both were not accepted, they both offered to God? Why, Abel only sacrificed well, because he first by faith in Christ was righteous: This because Cain wanted, "sin abideth at his door."

"And to thee shall be his desire, and thou shalt rule over him." That is if sin abideth at thy door still, to thee shall be his desire; he shall love, pity, pray for thee, and endeavour thy conversions; but thou shalt be lord over him, and shalt put thy yoke upon his neck. This was Jacob's portion also; for after Esau had got head, he broke Jacob's yoke from off his neck, and reigned by nineteen or twenty dukes and princes, before there was any king in Israel (Gen 27:40).

It is the lot of Cain's brood, to be lords and rulers first, while Abel and his generation have their necks under persecution; yet while they lord it, and thus tyrannically afflict and persecute, our very desire is towards them, wishing their salvation: While they curse, we bless; and while they persecute, we pray.

Ver. 8. "And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him."

When Cain saw that by God's judgment Abel was the better worshipper, and that himself must by no means be admitted for well-doing, his heart began to be more obdurate and hard, and to grow into that height of desperateness, as to endeavour the extirpating of all true religion out of the world; which it seems he did, by killing his brother, mightily accomplish, until the days of Enos; for "then began men [again] to call upon the name of the Lord" (v 26).

Hence see the spite of the children of hell against God: They have slain thy prophets, and digged down thine altars (1 Kings 19:10). If they may have their wills, God must be content with their religion, or none; other they will not endure should have show within their reach, but with Cain, will rather kill their brother; or with the Pharisees, kill their Lord; and with the evil kings of old, will rather kill their sons and subjects. That the truth, I say, may fall to the ground, and their own inventions stand for acceptable sacrifices, they will not only envy, but endeavour to invalidate all the true worship and worshippers of God in the world; the which if they cannot without blood accomplish, they will slay and kill till their cruelty hath destroyed many ten thousands, even as Cain, who slew his brother Abel.[22]

And Cain talked with his brother. He had not a law whereby to arraign him, but malice enough, and a tongue to set all on fire, of which no doubt, by the goodly replies of his brother, was easily blown up into choler and madness, the end of which was the blood of his brother.

"And Cain talked with Abel," &c. To wit, about the goodness and truth of his religion. For that the New Testament seems to import, he slew him "because his works were righteous" (1 John 3:12); which Abel, no doubt, had justified before his brother, even then when he most set himself to oppose him. Besides this, the connection of the relation importeth, he talked with him, he slew him; he talked with him and slew him, purely upon a religious account, because his works were righteous.