Genesis 4 tells the story of Cain and Abel. Both bring sacrifices to God, yet God only looks favorably on Abel's sacrifice. Filled with resentment and contempt, Cain kills Abel, becoming the Bible's first murderer. What was wrong with Cain's sacrifice? Or, perhaps, was it a matter of the heart? God's design was for our good, and at the heart of it is the truth that God is sovereign and we are not. Pray that God would remind you of the beauty of his design, and that his ways are meant to lead us to life.