Genesis 4:8-11

8One day Cain said to his brother Abel, ‘We should go out to the fields.’ While they were in the fields, Cain attacked his brother Abel. He killed Abel.

9Then the Lord said to Cain, ‘Where is Abel, your brother?’ Cain replied, ‘I do not know where he is. Must I always keep my brother safe?’

10Then the Lord God said, ‘Why have you done this bad thing? Now your brother's blood is lying there on the ground. That is like his voice which is shouting to me for help.

11The ground received your brother's blood when you killed him. As a result, the ground no longer accepts you. It has brought a curse on you.