Genesis 4:8-11

8And 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.

9And the LORD said to 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 to me from the ground.1 11And now art thou cursed from the earth, which hath opened her mouth to receive thy brother’s blood from thy hand;