Atbash

Interest in the possibility that secret codes (inserted by God) exist in the first five books of the Bible has inspired much discussion and numerous books.  The Bible Codes and possible humanly inserted acrostics have been discussed in this blog.

There is another Hebrew biblical convention known as Atbash (ATBS).  This is a simple monoalphabetic substitution cipher which was used to "hide in plain sight" secret messages intended only for those who knew the code.  The code consists of reversing the Hebrew alphabet.  The third letter from the beginning of the alphabet would be replaced by the third letter from the end of the alphabet, etc. An example from   Jeremiah 25:26 and 51:41 is the substitution of Sheshak (שֵׁשַׁךְ) for Babylon (בָבֶל).