Finding Jehovah in the King James Bible

The God of the Old Testament is Jehovah.  Jehovah is the premortal Jesus Christ.  He defines Himself as the Great "I Am," meaning the living God, the God who always exists, the God who did not need to be created like the idols.  In the written Hebrew language, which has no vowels, it appears as something similar to JHWH.  The Jews, however, never spoke the name Jehovah, out of reverence.  Instead they used another of the names of God, generally Adonai.  The original pronunciation has, therefore, been lost.

Out of deference to the Jews' respectful tradition of not speaking the name Jehovah, the King James Translaters substituted the word "Lord" written with a large capitol L and small capitals ORD.  Anytime you see this word in the Bible, you can know that the original word in Hebrew was "Jehovah," and the God being referred to is the premortal Jesus Christ.  (Bible Dictionary)