The last book of the Bible is the “Book of Revelation,” and the last verse is 22:21, which reads "The grace of our Lord Jesus Christ be with you all. Amen." So, the last word of the Bible is "Amen". The word appears 30 times in the Old Testament and 52 times in the Gospels (Matthew, Mark, Luke and John).

"Amen" is a word that usually follows a prayer or blessing to indicate the listener agrees with the speaker. It derives from a triconsonantal root rather than a specific word and has many different meanings and translations. Examples include "to be faithful", "to have faith", and "to believe". In French, the word is translated as "Ainsi soit-il", which means "So be it."

The "Book of Revelation" was written by John, although scholars disagree whether this is the same John as the author of the eponymous Gospel. Some people consider "Revelation" to be the most difficult book in the Bible, and there have been many arguments over how to interpret it. The book deals with prophecies, some of which people believe have already been fulfilled, and others that are interpreted as the second coming of Christ. Christians have attempted to decode the cryptic visions and prophecies of John to determine when the event will occur, but no one agrees on an exact time and location.

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