How do you deal with feelings of rejection? Cain's example is certainly one to avoid. When God called his offering inadequate, he didn't go and learn how to make better offerings. He killed the one who God had accepted. When Jesus comes, we see him once again offering God's blessing, but only on God's terms. To try and approach God any other way, in our own way, is the approach of Cain. Hopefully, we are at least not quite so deadly as he was.