Genesis

⁶And the Lord said unto Cain, Why art thou wroth? and why is thy countenance fallen? ⁷If thou doest well, shalt thou not be accepted? and if thou doest not well, sin coucheth at the door: and unto thee shall be his desire, and thou shalt rule over him. ⁸And Cain told 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. ⁹And the Lord said unto Cain, Where is Abel thy brother? And he said, I know not: am I my brother's keeper? ¹⁰And he said, What hast thou done? the voice of thy brother's blood crieth unto me from the ground. ¹¹And now cursed art thou from the ground, which hath opened her mouth to receive thy brother's blood from thy hand; ¹²when thou tillest the ground, it shall not henceforth yield unto thee her strength; a fugitive and a wanderer shalt thou be in the earth.