
The traditional view contends that all the letters are by the hand of John the Apostleand the linguistic structure, special vocabulary, and polemical issues all lend toward this theory. It is therefore suggested by a few that a single author composed both of these letters. The language of this epistle is remarkably similar to 3 John.

However, Second John has the fewest verses in the Bible with only 1 chapter made up of only 13 verses.

For example, in the New International Version 2 John is the shortest book with only words but in the King James Version Authorized Version 3 John is the shortest with only words. The shortest book in the English language is different depending on which translation version you look at.

Second John and Third John are the two shortest books in the Bible. Most modern scholars believe this is not John the Apostlebut in general there is no consensus as to the identity of this person or group. The Second Epistle of Johnoften referred to as Second John and often written 2 John or II Johnis a book of the New Testament attributed to John the Evangelisttraditionally thought to be the author of the other two epistles of John, and the Gospel of John though this is disputed.
