6 Then the LORD said to Cain, “Why are you angry? Why is your face downcast? 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.”
6 Then the LORD said to Cain, “Why are you angry? Why is your face downcast? 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.”
Collision of Kingdoms 
I have verse 7 written in the front of my Bible, just so I am often reminded of it.
Corner that rail kid. You can do it. I have faith in you. Much more than you know.