We are not told exactly why Cain’s offering was unacceptable but Abel’s was pleasing to God. In Genesis 4:3-4, we see that Cain brought “some” and Abel brought “the best.” I think if I had to choose between some or the best, I would choose the best. Then in verse 7, Cain is told, “You will be accepted if you do what is right.” It is clear that Cain did not do what was right, and that possibly was linked with a poor attitude that needed correction.
We see this attitude problem from Cain when he gets jealous because Abel’s offering was accepted. God warned Cain that sin was crouching nearby and the attitude needed to be changed, but Cain did not wish to move toward God and seek the remedy. Instead he invited his brother to an outing and then killed Abel. Matthew said that Abel was the first to die for the truth (23:35).
We all have a choice—to be more like Abel or more like Cain when it comes to pleasing God. We don’t know much about these brothers, but we do know a few things. Abel gave the best. Abel did what was pleasing to God. Cain did not present a suitable offering. Cain did not seek out God when told he needed to change his focus. Abel gave all; Cain gave some. Where do you fit? Are you giving the best? Are you trying to live a life pleasing to God? Or are you getting irritated and wanting to do things your own way?
“Then the LORD said to Cain, ‘Why are you angry? Why is your face downcast? 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.’” – Genesis 4:6-7 [NIV]