Genesis 4:2
4 And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the Lord.
2 And she again bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.
3 And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto the Lord.
4 And Abel, he also brought of the firstlings of his flock and of the fat thereof. And the Lord had respect unto Abel and to his offering:
5 But unto Cain and to his offering he had not respect. And Cain was very wroth, and his countenance fell.
“And Abel was a keeper of sheep.” Whether both the brothers had married wives, and each had a separate home, Moses does not relate. This, therefore, remains to us an uncertainty, although it is probable that Cain was married before he slew his brother; since Moses soon after adds, that he knew his wife, and begat children: and no mention is there made of his marriage. Both followed a kind of life in itself holy and laudable. For the cultivation of the earth was commanded by God; and the labour of feeding sheep was not less honourable than useful; in short, the whole of rustic life was innocent and simple, and most of all accommodated to the true order of nature. This, therefore, is to be maintained in the first place, that both exercised themselves in labour approved by God, and necessary to the common use of human life. Whence it is inferred, that they had been well instructed by their father. The rite of sacrificing more fully confirms this because it proves that they had been accustomed to the worship of God. The life of Cain, therefore, was, in appearance, very well regulated; inasmuch as he cultivated the duties of piety towards God, and sought a maintenance for himself and his, by honest and just labour, as became a provident and sober father of a family. Moreover, it will be here proper to recall to memory what we have before said, that the first men, though they had been deprived of the sacrament of divine love, when they were prohibited form the tree of life, had yet been only so deprived of it, that a hope of salvation was still left to them, of which they had the signs in sacrifices. For we must remember, that the custom of sacrificing was not rashly devised by them, but was divinely delivered to them. For since the Apostle refers the dignity of Abel’s accepted sacrifice to faith, it follows, first, that he had not offered it without the command of God, (Heb. 11:4). Secondly, it has been true from the beginning of the world, that obedience is better than any sacrifices, (1 Sam. 15:22) and is the parent of all virtues. Hence it also follows, that man had been taught by God what was pleasing to Him. Thirdly, since God has been always like himself, we may not say that he was ever delighted with mere carnal and external worship. Yet he deemed those sacrifices of the first age acceptable. It follows, therefore, further, that they had been spiritually offered to him: that is, that the holy fathers did not mock him with empty ceremonies, but comprehended something more sublime and secret; which they could not have done without divine instruction. For it is interior truth alone which, in the external signs, distinguishes the genuine and rational worship of God from that which is gross and superstitious. And, certainly, they could not sincerely devote their mind to the worship of God, unless they had been assured of his benevolence; because voluntary reverence springs from a sense of and confidence in, his goodness; but, on the other hand, whosoever regards God as hostile to himself, is compelled to flee from him with very fear and horror. We see then that God, when he takes away the tree of life, in which he had first given the pledge of his grace, proves and declares himself to be propitious to man by other means. Should any one object, that all nations have had their own sacrifices, and that in these there was no pure and solid religion, the solution is ready: namely, that mention is here made of such sacrifices as are lawful and approved by God; of which nothing but an adulterated imitation afterwards descended to the Gentiles. For although nothing but the word “mincha” is here placed, which properly signifies a gift, and therefore is extended generally to every kind of oblation; yet we may infer, for two reasons, that the command respecting sacrifice was given to the fathers from the beginning; first, for the purpose of making the exercise of piety common to all, seeing they professed themselves to be the property of God, and esteemed all they possessed as received from him; and secondly, for the purpose of admonishing them of the necessity of some expiation in order to their reconciliation with God. When each offers something of his property, there is a solemn giving of thanks, as if he would testify by his present act that he owes to God whatever he possesses. But the sacrifice of cattle and the effusion of blood contains something further, namely, that the offerer should have death before his eyes; and should, nevertheless, believe in God as propitious to him. Concerning the sacrifices of Adam no mention is made.
— John Calvin (1509-1564)
