Genesis 4:6-7 NIV

6 Then the LORD said to Cain, "Why are you angry?1 Why is your face downcast?

References for Genesis 4:6

7 If you do what is right, will you not be accepted? But if you do not do what is right, sin is crouching at your door;2 it desires to have you, but you must master it.3"

References for Genesis 4:7