In the biblical Book of Genesis, Cain and Abel are the first two sons of Adam and Eve. Cain, the firstborn, was a farmer, and his brother Abel was a shepherd. The brothers made sacrifices, each from his own fields, to God. God had regard for Abel's offering, but had no regard for Cain's. Cain killed Abel and God judged it murder, cursing Cain and sentencing him to a life of transience. Cain then dwelt in the land of Nod (נוֹד, 'wandering'), where he built a city and fathered the line of descendants beginning with Enoch. Thus, Cain was the first person born, and Abel the first to die.
The New Testament Epistle to the Hebrews interprets Abel's sacrifice as more acceptable than Cain's because it was offered in faith, earning Abel the approval of God. In the Qur'an, Cain and Abel are known as Qābīl (Arabic: قابيل) and Hābīl (هابيل), respectively. In Islamic tradition, the story of Cain and Abel portrays Cain as the first murderer driven by jealousy and lust, guided by the devil, and punished with guilt and disgrace, with some scholars debating the identity and motives of the brothers. In the Sethian Apocryphon of John, Cain and Abel are Archons, children of the Demiurge Yaldabaoth, named Yahweh and Elohim but called Cain and Abel to deceive.
The story of Cain and Abel is widely interpreted in academic biblical scholarship as a symbolic tale reflecting early agricultural society's tensions—such as those between nomadic herders and settled farmers—and may draw from the older Mesopotamian myth Enlil Chooses the Farmer-God. Cain and Abel have become enduring cultural symbols of fratricide and sibling conflict, referenced and reinterpreted across art, literature, theater, music, and film from medieval times to modern popular culture.
The story of Cain's murder of Abel and its consequences is told in Genesis 4:1–18:
Now the man knew his wife Eve, and she conceived and bore Cain, saying, "I have produced a man with the help of the Lord." Next she bore his brother Abel. Now Abel was a keeper of sheep, and Cain a tiller of the ground. In the course of time Cain brought to the Lord an offering of the fruit of the ground, and Abel for his part brought of the firstlings of his flock, their fat portions. And the Lord had regard for Abel and his offering, but for Cain and his offering he had no regard. So Cain was very angry, and his countenance fell. The Lord said to Cain,
Cain said to his brother Abel, "Let us go out to the field." And when they were in the field, Cain rose up against his brother Abel, and killed him.
Then the Lord said to Cain, "Where is your brother Abel?" He said, "I do not know; am I my brother's keeper?" And the Lord said, "What have you done? Listen; your brother's blood is crying out to me from the ground! And now you are cursed from the ground, which has opened its mouth to receive your brother's blood from your hand. When you till the ground, it will no longer yield to you its strength; you will be a fugitive and a wanderer on the earth." Cain said to the Lord, "My punishment is greater than I can bear! Today you have driven me away from the soil, and I shall be hidden from your face; I shall be a fugitive and a wanderer on the earth, and anyone who meets me may kill me." Then the Lord said to him, "Not so! Whoever kills Cain will suffer a sevenfold vengeance." And the Lord put a mark on Cain, so that no one who came upon him would kill him.
Then Cain went away from the presence of the Lord, and settled in the land of Nod, east of Eden. Cain knew his wife, and she conceived and bore Enoch; and he built a city, and named it Enoch after his son Enoch.
Cain and Abel are traditional English renderings of the Hebrew names. Cain (Hebrew, Kayin), derives from kinyan, or acquisition. Abel (Hebrew, Hevel) means empty, vain, or transitory.
Abel, the first murder victim, is sometimes seen as the first martyr, while Cain, the first murderer, is sometimes seen as an ancestor of evil. Some scholars suggest the pericope may have been based on the Sumerian myth of Enlil and Enki, with Enlil in Cain's role and Enki in Abel's. Modern scholars typically view the stories of Adam and Eve and Cain and Abel to be about the development of civilization during the age of agriculture; not the beginnings of man, but when people first learned agriculture, replacing the ways of the hunter-gatherer. It has also been seen as a depiction of nomadic conflict, the struggle for land and resources (and divine favour) between nomadic herders and sedentary farmers.
The academic theologian Joseph Blenkinsopp holds that Cain and Abel are symbolic rather than real. Like almost all of the persons, places and stories in the primeval history (the first eleven chapters of Genesis), they are mentioned nowhere else in the Hebrew Bible, a fact that for some scholars suggests that the history is a late composition attached to Genesis to serve as an introduction. The date is also disputed: the history may be as late as the Hellenistic period (first decades of the 4th century BCE) or as early as the 9th-8th centuries BCE, but the high level of Babylonian myth behind its stories has led others to date it to the Babylonian exile (6th century BCE). A prominent Mesopotamian parallel to Cain and Abel is Enlil Chooses the Farmer-God, in which the shepherd-god Emesh and the farmer-god Enten bring their dispute over which of them is better to the chief god Enlil, who rules in favor of Enten (the farmer).
The author of the Epistle to the Hebrews, in Hebrews 11:4, makes a brief reference to the Cain and Abel story:
By faith Abel offered to God a more acceptable sacrifice than Cain's. Through this he received approval as righteous, God himself giving approval to his gifts; he died, but through his faith he still speaks.In 1 John 3:12 New International Version Bible, it says:
Do not be like Cain, who belonged to the evil one and murdered his brother. And why did he murder him? Because his own actions were evil and his brother’s were righteous.
The story of Cain and Abel appears in the Quran 5:27–31:
[Prophet], tell them the truth about the story of Adam's two sons: each of them offered a sacrifice, and it was accepted from one and not the other. One said, 'I will kill you,' but the other said, 'God only accepts the sacrifice of those who are mindful of Him. If you raise your hand to kill me, I will not raise mine to kill you. I fear God, the Lord of all worlds, and I would rather you were burdened with my sins as well as yours and became an inhabitant of the Fire: such is the evildoers' reward.' But his soul prompted him to kill his brother: he killed him and became one of the losers. God sent a raven to scratch up the ground and show him how to cover his brother's corpse and he said, 'Woe is me! Could I not have been like this raven and covered up my brother's body?' He became remorseful.
The story of Cain and Abel has been used as a deterrent from murder in Islamic tradition. Abdullah ibn Mas'ud reported that Muhammad said in a hadith:
No soul is wrongfully killed except that some of the burden falls upon the son of Adam, for he was the first to establish the practice of murder.