The book of Romans is the longest and the clearest exposition by the Apostle Paul on the Gospel. This book contains the doctrinal foundation for the Christian faith, and it is for this reason that it was arranged first in order among the New Testament epistles. The truths presented here must be understood before proceeding to other doctrinal matters. In this letter, Paul dealt with a larger number of doctrinal issues than in any other of his epistles. His treatment of the doctrine of salvation by grace through faith was so masterfully done that its divine inspiration cannot be questioned.