According to the most widely accepted theory, Luke and Matthew used the gospel of Mark as the main source for their own gospels. In so doing, Matthew reproduced almost all the contents of Mark; Luke however omitted one large block of Marcan material: Mark 6.45–8.26. Luke may have omitted this section because his copy of the gospel of Mark was lacking this section, or because, although he knew this material, he chose to omit it from his gospel.