The New Testament books from shortest to longest: 3 John, 2 John, Philemon, Jude, Titus, 2 Thessalonians, Revelation, 2 Peter, 2 Timothy, 1 Thessalonians, Colossians, 1 Timothy, Philippians, 1 Peter, James, 1 John, Galatians, Ephesians, 2 Corinthians, Hebrews, 1 Corinthians, Romans, Mark, John, Matthew, Acts, Luke