Genesis 4:6-8

LXX2012(i) 6 And the Lord God said to Cain, Why are you become very sorrowful and why is your countenance fallen? 7 Hast you not sinned if you have brought it rightly, but not rightly divided it? be still, to you shall be his submission, and you shall rule over him. 8 And Cain said to Abel his brother, Let us go out into the plain; and it came to pass that when they were in the plain Cain rose up against Abel his brother, and killed him.