Genesis 4:8 ASV

⁶  And Jehovah said unto Cain, Why art thou wroth? and why is thy countenance fallen?

⁷  If thou doest well, shall it not be lifted up? and if thou doest not well, sin coucheth at the door: and unto thee shall be its desire, but do thou rule over it.

⁸  And 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.

⁹  And Jehovah said unto Cain, Where is Abel thy brother? And he said, I know not: am I my brother's keeper?

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