In Romans 3:9-20 Paul summarized his argument thus far: The law condemns everyone, Jew and Gentile alike, shutting every mouth before God’s tribunal. The righteousness of God leaves no one standing. Everyone is guilt. One may not be guilty before a human court, or before the court of public opinion, or in the eyes of neighbors, souses or friends. One may not be convicted in one’s own sight. Nevertheless, the only verdict that really matters is God’s, and it is unambiguous. If the only revelation that we had were that which is gleaned from our natural knowledge of God’s existence, power and righteousness, we would have no hope.
– Horton, Michael; The Gospel Driven Life: Being Good News People in a Bad News World; Baker Books; Grand Rapids, MI; Copyright 2009; page 62