And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto the Lord. (4:3)

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: (4:4)

But unto Cain and to his offering he had not respect. And Cain was very wroth, and his countenance fell. (4:5)

And the Lord said unto Cain, Why art thou wroth? and why is thy countenance fallen? (4:6)

If thou doest well, shalt thou not be accepted? and if thou doest not well, sin lieth at the door. And unto thee [shall be] his desire, and thou shalt rule over him. (4:7)

And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him. (4:8)

And the Lord said unto Cain, Where [is] Abel thy brother? And he said, I know not: [Am] I my brother's keeper? (4:9)

And he said, What hast thou done? the voice of thy brother's blood crieth unto me from the ground. (4:10)

And now [art] thou cursed from the earth, which hath opened her mouth to receive thy brother's blood from thy hand; (4:11)

When thou tillest the ground, it shall not henceforth yield unto thee her strength; a fugitive and a vagabond shalt thou be in the earth. (4:12)

And Cain said unto the Lord, My punishment [is] greater than I can bear. (4:13)

Behold, thou hast driven me out this day from the face of the earth; and from thy face shall I be hid; and I shall be a fugitive and a vagabond in the earth; and it shall come to pass, [that] every one that findeth me shall slay me. (4:14)

And the Lord said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the Lord set a mark upon Cain, lest any finding him should kill him. (4:15)

--Hebrews--

By faith Abel offered unto God a more excellent sacrifice than Cain, by which he obtained witness that he was righteous, God testifying of his gifts: and by it he being dead yet speaketh. (11:4)

--1 John--

Not as Cain, [who] was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother's righteous. (3:12)

--Jude--

Woe unto them! for they have gone in the way of Cain, and ran greedily after the error of Balaam for reward, and perished in the gainsaying of Core. (1:11)