No consolidation of the Gospels can substitute for the individual study of each Gospel because the valuable context of each of those writings will be lost. A "harmony" or parallel format has to be treated for the most valuable thing that it really is, which is a supplemental study tool. And, of course, a study tool created by a mortal, not an infallible work provided by the hand of the divine. Like all its predecessors from history past, this is really more of an exercise which probably every serious Bible student needs to pursue personally. As with all things when it comes to God's Word, it is never a test limited to knowledge alone, but always dedicated to the greater issue of faith. The committed believer in Christ is not looking for the exceptions or the differences, but the multi-layered confirmations by the Holy Spirit of the greater application of God's Word and ways to our personal walk. Hopefully this will be accepted as just that sort of study aid. Also available as a Kindle ebook.