What is the best way to understand certain doctrines in Scripture?

Les teaches that one of the best ways to understand certain tenets of Scripture is to go back to the place of first mention. He illustrates this by going back to Genesis chapter 3 to see how it worked with Adam. This is the first time a man is faced with both imperatives: he must first and foremost know that he approaches God by faith, and secondly there must be a blood sacrifice. Les then comes to Genesis 3:20 where Adam called his wife's name Eve, which by interpretation means the mother of all living. He reminds that earlier Adam was alone and Eve was inside him; she was first called woman, out of man. Later, Adam names her Eve. This first mention helps establish the foundational understanding of the doctrine.