Genesis 4:8-9
8
¶ 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.
9
¶ And the LORD said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother's keeper?
Bible text: King James Version (1769 Blayney text) · Public domain