When translating the Bible, the translators are faced with a choice. Do you translate word for word, or meaning for meaning; as different languages have different figures of speech.
A fully word of word translation would almost be unreadable and very hard to understand, as often one Greek word should be translated as multiple English words depending on context.
A meaning for meaning translation gives the translators a great amount of latitude and can change the meaning of the underlying text if the translators theology is astray.
The King James Revelation Bible tries to stick as closely as possible to a word of word translation, retaining the integrity of the original text, while also making rare exceptions where a meaning for meaning translation is the most appropriate solution for a particular phrase.