Cain and Abel
Classic tale of brothers and murder.
Reprinted from The Jewish Religion: A Companion, published by Oxford University Press.
Cain and Able were the two sons of Adam and Eve (Genesis 4). Cain is a tiller of the soil and Abel a keeper of sheep. (The suggestion that the narrative contains echoes of a conflict between the settled farmers and the nomadic shepherds has no evidence to support it, since there is no record of such a conflict in ancient Israelite society.) Cain brings an offering to the Lord from the fruit of the soil and Abel from the choicest of the firstlings of his flock. God rejects Cain's offering but accepts Abel's.
Jan van Eyck painting "Ghent Altarpiece",
When Cain and Abel are in the field Cain attacks Abel and kills him, whereupon God condemns Cain to a life of wandering and puts a mark on him, as a sign that he is protected and no one must kill him. (The expression "the brand of Cain" for a murderer is based on a misunderstanding. Cain was not "branded" in order to mark him as a murderer but rather to protect him from himself becoming a victim of murder.)
The name Cain, in Hebrew kayin, is said to have been given by Eve because she declared: "I have gotten [kaniti, from kanah, 'to acquire'] a man from the Lord." Of Abel the text simply says that Eve gave birth to him, without stating that she named him. It is interesting that the Hebrew word, translated as Abel, means "vapor," and this is a probably an instance, of which there are many in the Bible, of a name describing the subsequent fate of a person; in this case it means, perhaps, that his life was short and insubstantial because he was cut off in his prime.
The narrative is unclear about why God rejected Cain's offering and accepted Abel's. One interpretation is based on the word "choicest" of Abel's offering. Abel brought his very best, whereas Cain was satisfied with the leftovers.
In a Midrash (Genesis Rabbah 22: 7) there are three opinions as to why the brothers quarreled. According to one opinion the brothers divided the world between them, one taking all the land, the other all the movables. The one who took the land ordered the other to get off his land and fly in the air. The one who took the movables ordered the other to strip naked because the clothes belonged to him. Another opinion is that the quarrel was about in whose territory the Temple was to be built.
A third opinion is that Cain had a twin sister (Genesis 4: 17 says that Cain took a wife and otherwise whom did he marry?) but Abel had two sisters born at the same time as him (i.e. they were triplets). Abel claimed both his sisters for himself but Cain wanted the additional one by his right as a first-born to have a double portion.