Canon of Scripture & Prophecy: Why is the canon of scripture closed if the gift of prophecy is so valued as a gift? [I Corinthians 14:1, I Thessalonians 5:20, I Corinthians 12:28, Ephesians 2:20, Ephesians 4:11, Acts 21:9, John 13:20, I Corinthians 14:29, Acts 21:11, I Corinthians 14:3].