Cary Cox, from Genesis 1:3-25. As we study the days of creation, we see God’s power on display, as well as his purpose for what he made. Genesis 1 is laying this foundation: God gets to say what is good and what is not good. God gets to define the purpose for everything he made. God gets to set limits and boundaries and parameters around all that exists, because it is his. Sin is when we reject God’s definitions and stated purposes, and when we cast aside his limitations and distinctions to say that we can be and do whatever we want.