The term 'Biblical Battle' refers to a battle that is mentioned in the Bible. The most famous of these is ARMAGEDDON, which is a 10 letter word. This battle is described in the Book of Revelation and is said to be the final battle between good and evil. Another Biblical battle is the one between Esau and Jacob, which is a 4 letter word. This battle is described in the Book of Genesis and is between two brothers who were competing for their father's blessing.