In the First Letter of Clement, which was not recognized as canonical, Clement cites Paul’s letter to the Corinthians, showing that 1 Corinthians had been received by the early Christian community as authoritative. In the Bible itself, the Apostle Peter makes mention of Paul’s letters as being included among the category of Scripture (2 Peter 3:16). The third mark of canonicity was the cause of most of the controversy. The books deemed to be Apostolic or sanctioned by an Apostle, and also received