Romans Chapter 1

St. Paul is describing the world in a state of sin. The children of Abraham failed to keep the law given by Moses. The Gentiles, all who are not children of Abraham, failed to keep the natural law. Even those who have not received revelation from God are still obligated to do what is good. Whenever we reject the law of God as revealed in scripture or in nature then bad things will happen. Paul describes the results of this failure to acknowledge God in chapter 1.