Compare the attitudes of Cain and his brother, Abel, as they offered their worship to God. What is the condition of your heart as you worship God? In what ways would you like to see your attitude change? How might that change begin to happen? If you have siblings, think about conflict you may be having, or have had, with them. How is it different from other conflicts? Is there an unresolved issue between you and a sibling? What things might you do to address the issue? Does the fact that Christians are now “brothers and sisters” in Jesus change the way you look at people who are not blood relatives? In what ways? God warned Cain about sin “crouching at the door” of his life. Think about some sin that is “crouching at the door” of your life. What is it? Does anyone else know about it? What will you do to “master” it before it “masters” you? Cain seemed to process things based on how they affected him without thinking about how others might be affected (v5 & v13). Is there a situation in your life now that you are thinking of only in terms of how it affects you? Have you stopped to consider how it might be affecting others? How can you cultivate the kind of heart and mind that cares about others as much as self? For deeper study: In the Scriptures, what other siblings had conflicts? How were they handled? How did God respond? For a place to start, check Genesis 21v1-20; Genesis 27; Genesis 37; 2 Samuel 13.