Irenaeus (died c. 202) quotes and cites 21 books that would end up as part of the New Testament, but does not use Philemon, Hebrews, James, 2 Peter, 3 John and Jude.[4] By the early 3rd century Origen of Alexandria may have been using the same 27 books as in the modern New Testament, though there were still disputes over the canonicity of Hebrews, James, 2 Peter, 2 and 3 John, and Revelation[5] (see also Antilegomena).