Genesis 4:6-7 NIV

6 Then the LORD said to Cain, “Why are you angry? 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; it desires to have you, but you must rule over it.”

References for Genesis 4:7