All Truth - Part 2. The lesson on February 8, 2004 is the second studying the idea of All Truth. All Truth incorporates the last body of truth that was given in scripture. The Apostle Paul was selected to reveal The Mystery that was not hidden in Old Testament scriptures but hidden in God before the foundation of the world. Christ promised that the Holy Spirit would lead us into all truth yet any promises given during the Gospels or Acts period are based in Old Testament truth’s. When you become a Christian, you don’t automatically know all truth.