Genesis

Now the man had relations with his wife Eve, and she conceived and gave birth to Cain, and she said, "I have gotten a manchild with [the help of] the Lord."

And again, she gave birth to his brother Abel. And Abel was a keeper of flocks, but Cain was a tiller of the ground.

So it came about in the course of time that Cain brought an offering to the Lord of the fruit of the ground.

And Abel, on his part also brought of the firstlings of his flock and of their fat portions. And the Lord had regard for Abel and for his offering;

but for Cain and for his offering He had no regard. So Cain became very angry and his countenance fell.

Then the Lord said to Cain, "Why are you angry? And why has your countenance fallen?

"If you do well, will not [your countenance] be lifted up? And if you do not do well, sin is crouching at the door; and its desire is for you, but you must master it."

And Cain told Abel his brother. And it came about when they were in the field, that Cain rose up against Abel his brother and killed him.

Then the Lord said to Cain, "Where is Abel your brother?" And he said, "I do not know. Am I my brother's keeper?"

And He said, "What have you done? The voice of your brother's blood is crying 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 cultivate the ground, it shall no longer yield its strength to you; you shall be a vagrant and a wanderer on the earth."

And Cain said to the Lord, "My punishment is too great to bear!

"Behold, Thou hast driven me this day from the face of the ground; and from Thy face I shall be hidden, and I shall be a vagrant and a wanderer on the earth, and it will come about that whoever finds me will kill me."

So the Lord said to him, "Therefore whoever kills Cain, vengeance will be taken on him sevenfold." And the Lord appointed a sign for Cain, lest anyone finding him should slay him.

Then Cain went out from the presence of the Lord, and settled in the land of Nod, east of Eden.

And Cain had relations with his wife and she conceived, and gave birth to Enoch; and he built a city, and called the name of the city Enoch, after the name of his son.

Now to Enoch was born Irad; and Irad became the father of Mehujael; and Mehujael became the father of Methushael; and Methushael became the father of Lamech.

And Lamech took to himself two wives: the name of the one was Adah, and the name of the other, Zillah.

And Adah gave birth to Jabal; he was the father of those who dwell in tents and [have] livestock.

And his brother's name was Jubal; he was the father of all those who play the lyre and pipe.

As for Zillah, she also gave birth to Tubal-cain, the forger of all implements of bronze and iron; and the sister of Tubal-cain was Naamah.

And Lamech said to his wives, "Adah and Zillah, Listen to my voice, You wives of Lamech, Give heed to my speech, For I have killed a man for wounding me; And a boy for striking me;

If Cain is avenged sevenfold, Then Lamech seventy-sevenfold."

And Adam had relations with his wife again; and she gave birth to a son, and named him Seth, for, [she said,] "God has appointed me another offspring in place of Abel; for Cain killed him."

And to Seth, to him also a son was born; and he called his name Enosh. Then [men] began to call upon the name of the Lord.