Midrash sobre Génesis 4:3

R. Simeon ben Johay said:¹⁶See Gen. R. 1:13. Woe to blasphemers who take the name of the Holy One lightly, for one should not say: To the LORD an offering, to the LORD a burnt offering. Rather, < use the biblical wording > (as in Lev. 1:2): WHEN ONE OF YOU PRESENTS AN OFFERING TO THE LORD; (or as in Numb. 8:12): A SIN OFFERING < … > TO THE LORD; (or as in Lev. 23:18; Numb. 8:12; 28:11, 19; 29:8; Jud. 13:16; etc.): A BURNT OFFERING TO THE LORD; (or as in Gen. 4:3; Is. 66:20; Ezek. 46:14; Mal. 2:12; II Chron. 33:23): A MEAL OFFERING TO THE LORD. Learn (from the Hebrew word order in Gen. 1:1): IN THE BEGINNING CREATED, and after that, GOD. When he mentions his creation,¹⁷Gk.: ktisma. < it is only > afterwards < that > he mentions his name.

And in process of time it came to pass that Cain brought of the fruit of the ground (Gen. 4:3). The process of time (lit. “end of days”) may imply either the end of a year, the end of two years, after a certain number of days, or after forty years. Our sages, of blessed memory, said that Cain and Abel were forty years old when Cain brought of the fruit of the ground. What did he bring as his offering? He brought only the leftovers of his meal. However, the rabbis maintained that Cain brought flaxseed, while Abel brought firstlings of his flock and of the fat thereof (ibid., v. 4). That is why it is ordained that wool and flax must not be mixed, as it is said: Thou shalt nor wear mingled stuff, wool and linen together (Deut. 22:11).³¹The source of the law of shatnez, prohibiting the wearing of wool and linen together. The Holy One, blessed be He, declared: It is not fitting that a sinner’s offering and the sacrifice of a virtuous man should be coupled. Hence it is forbidden to combine them in a garment.

Now Cain was a man who loved the ground in order to sow seed; and Abel was a man who loved to tend the sheep; the one gave of his produce as food for the other, and the latter gave of his produce as food for his (brother). The evening of the festival of Passover arrived. Adam called his sons and said to them: In this (night) in the future Israel will bring Paschal offerings, bring ye also (offerings) before your Creator.