If thou doest well, shalt thou not be {e} accepted? and if thou doest not well, sin lieth at the {f} door. And unto thee shall be his {g} desire, and thou shalt rule over him.

(e) Both you and your sacrifice shall be acceptable to me.

(f) Sin will still torment your conscience.

(g) The dignity of the first born is given to Cain over Abel.

Wesley's Notes

4:7 If thou dost well, shalt thou not be accepted? - Either,
1. If thou hadst done well, as thy brother did, thou shouldest have been accepted as he was. God is no respecter of persons; so that if we come short of acceptance with him, the fault is wholly our own. This will justify God in the destruction of sinners, and will aggravate their ruin. There is not a damned sinner in hell, but if he had done well, as he might have done, had been a glorified saint in heaven. Every mouth will shortly be stopt with this. Or,
2. If now thou do well: if thou repent of thy sin, reform thy heart and life, and bring thy sacrifice in a better manner; thou shalt yet be accepted. See how early the gospel was preached, and the benefit of it here offered even to one of the chief of sinners. He sets before him death and a curse; but, if not well - Seeing thou didst not do well, not offer in faith, and in a right manner, sin lieth at the door - That is, sin only hinders thy acceptance. All this considered, Cain had no reason to he angry with his brother, but at himself only. Unto thee shall be his desire - He shall continue in respect to thee as an elder brother, and thou, as the first - born, shall rule over him as much as ever. God's acceptance of Abel's offering did not transfer the birth - right to him, (which Cain was jealous of) nor put upon him that dignity, and power, which is said to belong to it, Gen 49:3.

King James Translators' Notes

be accepted: or, have the excellency

unto...: or, subject unto thee

Scofield Reference Notes

[1] sin

Or, sin-offering. In Hebrew the same word is used for "sin," and "sin- offering," thus emphasizing in a remarkable way the complete identification of the believer's sin with his sin offering (cf) Jn 3:14 2Cor 5:21.

Here both meanings are brought together. "Sin lieth at the door," but Song also "a sin-offering croucheth at the [tent] door." It is "where sin abounded" that "grace did much more abound" Rom 5:20.

Abel's offering implies a previous instruction (cf) Gen 3:21 for it was "by faith" Heb 11:4 and faith is taking God at His word; Song that Cain's unbloody offering was a refusal of the divine way. But Jehovah made a last appeal to Cain Gen 4:7 even yet to bring the required offering.

Jamieson-Fausset-Brown Bible Commentary

7. If thou doest well, shalt thou not be accepted?-A better rendering is, "Shalt thou not have the excellency"? which is the true sense of the words referring to the high privileges and authority belonging to the first-born in patriarchal times.

sin lieth at the door-sin, that is, a sin offering-a common meaning of the word in Scripture (as in Ho 4:8; 2Co 5:21; Heb 9:28). The purport of the divine rebuke to Cain was this, "Why art thou angry, as if unjustly treated? If thou doest well (that is, wert innocent and sinless) a thank offering would have been accepted as a token of thy dependence as a creature. But as thou doest not well (that is, art a sinner), a sin offering is necessary, by bringing which thou wouldest have met with acceptance and retained the honors of thy birthright." This language implies that previous instructions had been given as to the mode of worship; Abel offered through faith (Heb 11:4).

unto thee shall be his desire-The high distinction conferred by priority of birth is described (Ge 27:29); and it was Cain's conviction, that this honor had been withdrawn from him, by the rejection of his sacrifice, and conferred on his younger brother-hence the secret flame of jealousy, which kindled into a settled hatred and fell revenge.

Matthew Henry's Concise Commentary

4:1-7 When Cain was born, Eve said, I have gotten a man from the Lord. Perhaps she thought that this was the promised seed. If so, she was wofully disappointed. Abel signifies vanity: when she thought she had the promised seed in Cain, whose name signifies possession, she was so taken up with him that another son was as vanity to her. Observe, each son had a calling. It is the will of God for every one to have something to do in this world. Parents ought to bring up their children to work. Give them a Bible and a calling, said good Mr. Dod, and God be with them. We may believe that God commanded Adam, after the fall, to shed the blood of innocent animals, and after their death to burn part or the whole of their bodies by fire. Thus that punishment which sinners deserve, even the death of the body, and the wrath of God, of which fire is a well-known emblem, and also the sufferings of Christ, were prefigured. Observe that the religious worship of God is no new invention. It was from the beginning; it is the good old way, Jer 6:16. The offerings of Cain and Abel were different. Cain showed a proud, unbelieving heart. Therefore he and his offering were rejected. Abel came as a sinner, and according to God's appointment, by his sacrifice expressing humility, sincerity, and believing obedience. Thus, seeking the benefit of the new covenant of mercy, through the promised Seed, his sacrifice had a token that God accepted it. Abel offered in faith, and Cain did not, Heb 11:4. In all ages there have been two sorts of worshippers, such as Cain and Abel; namely, proud, hardened despisers of the gospel method of salvation, who attempt to please God in ways of their own devising; and humble believers, who draw near to him in the way he has revealed. Cain indulged malignant anger against Abel. He harboured an evil spirit of discontent and rebellion against God. God notices all our sinful passions and discontents. There is not an angry, envious, or fretful look, that escapes his observing eye. The Lord reasoned with this rebellious man; if he came in the right way, he should be accepted. Some understand this as an intimation of mercy. If thou doest not well, sin, that is, the sin-offering, lies at the door, and thou mayest take the benefit of it. The same word signifies sin, and a sacrifice for sin. Though thou hast not done well, yet do not despair; the remedy is at hand. Christ, the great sin-offering, is said to stand at the door, Re 3:20. And those well deserve to perish in their sins, that will not go to the door to ask for the benefit of this sin-offering. God's acceptance of Abel's offering did not change the birthright, and make it his; why then should Cain be so angry? Sinful heats and disquiets vanish before a strict and fair inquiry into the cause.

Matthew Henry's Whole Bible Commentary

Verses 6-7

God is here reasoning with Cain, to convince him of the sin and folly of his anger and discontent, and to bring him into a good temper again, that further mischief might be prevented. It is an instance of God's patience and condescending goodness that he would deal thus tenderly with so bad a man, in so bad an affair. He is not willing that any should perish, but that all should come to repentance. Thus the father of the prodigal argued the case with the elder son (Lu. 15:28, etc.), and God with those Israelites who said, The way of the Lord is not equal, Eze. 18:25.

I. God puts Cain himself upon enquiring into the cause of his discontent, and considering whether it were indeed a just cause: Why is thy countenance fallen? Observe, 1. That God takes notice of all our sinful passions and discontents. There is not an angry look, an envious look, nor a fretful look, that escapes his observing eye. 2. That most of our sinful heats and disquietudes would soon vanish before a strict and impartial enquiry into the cause of them. "Why am I wroth? Is there a real cause, a just cause, a proportionable cause for it? Why am I so soon angry? Why so very angry, and so implacable?"

II. To reduce Cain to his right mind again, it is here made evident to him,

1. That he had no reason to be angry at God, for that he had proceeded according to the settled and invariable rules of government suited to a state of probation. He sets before men life and death, the blessing and the curse, and then renders to them according to their works, and differences them according as they difference themselves-so shall their doom be. The rules are just, and therefore his ways, according to those rules, must needs be equal, and he will be justified when he speaks.

(1.) God sets before Cain life and a blessing: "If thou doest well, shalt thou not be accepted? No doubt thou shalt, nay, thou knowest thou shalt;" either, [1.] "If thou hadst done well, as thy brother did, thou shouldst have been accepted, as he was." God is no respecter of persons, hates nothing that he had made, denies his favour to none but those who have forfeited it, and is an enemy to none but those who by sin have made him their enemy: so that if we come short of acceptance with him we must thank ourselves, the fault is wholly our own; if we had done our duty, we should not have missed of his mercy. This will justify God in the destruction of sinners, and will aggravate their ruin; there is not a damned sinner in hell, but, if he had done well, as he might have done, had been a glorious saint in heaven. Every mouth will shortly be stopped with this. Or, [2.] "If now thou do well, if thou repent of thy sin, reform thy heart and life, and bring thy sacrifice in a better manner, if thou not only do that which is good but do it well, thou shalt yet be accepted, thy sin shall be pardoned, thy comfort and honour restored, and all shall be well." See here the effect of a Mediator's interposal between God and man; we do not stand upon the footing of the first covenant, which left no room for repentance, but God had come upon new terms with us. Though we have offended, if we repent and return, we shall find mercy. See how early the gospel was preached, and the benefit of it here offered even to one of the chief of sinners.

(2.) He sets before him death and a curse: But if not well, that is, "Seeing thou didst not do well, didst not offer in faith and in a right manner, sin lies at the door," that is, "sin was imputed to thee, and thou wast frowned upon and rejected as a sinner. So high a charge had not been laid at thy door, if thou hadst not brought it upon thyself, by not doing well." Or, as it is commonly taken, "If now thou wilt not do well, if thou persist in this wrath, and, instead of humbling thyself before God, harden thyself against him, sin lies at the door," that is, [1.] Further sin. "Now that anger is in thy heart, murder is at the door." The way of sin is down-hill, and men go from bad to worse. Those who do not sacrifice well, but are careless and remiss in their devotion to God, expose themselves to the worst temptations; and perhaps the most scandalous sin lies at the door. Those who do not keep God's ordinances are in danger of committing all abominations, Lev. 18:30. Or, [2.] The punishment of sin. So near akin are sin and punishment that the same word in Hebrew signifies both. If sin be harboured in the house, the curse waits at the door, like a bailiff, ready to arrest the sinner whenever he looks out. It lies as if it slept, but it lies at the door where it will be soon awaked, and then it will appear that the damnation slumbered not. Sin will find thee out, Num. 32:23. Yet some choose to understand this also as an intimation of mercy. "If thou doest not well, sin (that is, the sin-offering), lies at the door, and thou mayest take the benefit of it." The same word signifies sin and a sacrifice for sin. "Though thou hast not done well, yet do not despair; the remedy is at hand; the propitiation is not far to seek; lay hold on it, and the iniquity of thy holy things shall be forgiven thee." Christ, the great sin-offering, is said to stand at the door, Rev. 3:20. And those well deserve to perish in their sins that will not go to the door for an interest in the sin-offering. All this considered, Cain had no reason to be angry at God, but at himself only.

2. That he had no reason to be angry at his brother: "Unto thee shall be his desire, he shall continue his respect to thee as an elder brother, and thou, as the first-born, shalt rule over him as much as ever." God's acceptance of Abel's offering did not transfer the birth-right to him (which Cain was jealous of), nor put upon him that excellency of dignity and of power which is said to belong to it, ch. 49:3. God did not so intend it; Abel did not so interpret it; there was no danger of its being improved to Cain's prejudice; why then should he be so much exasperated? Observe here, (1.) That the difference which God's grace makes does not alter the distinctions which God's providence makes, but preserves them, and obliges us to do the duty which results from them: believing servants must be obedient to unbelieving masters. Dominion is not founded in grace, nor will religion warrant disloyalty or disrespect in any relation. (2.) That the jealousies which civil powers have sometimes conceived of the true worshippers of God as dangerous to their government, enemies to Caesar, and hurtful to kings and provinces (on which suspicion persecutors have grounded their rage against them) are very unjust and unreasonable. Whatever may be the case with some who call themselves Christians, it is certain that Christians indeed are the best subjects, and the quiet in the land; their desire is towards their governors, and these shall rule over them.