Some Christians, and especially Jehovah’s witnesses, use this name for the Heavenly Father. However, every scholar and every reference book I have ever checked on “Jehovah” (including Jehovah’s witness tracts) has said that this is not the way you pronounce His name! First of all it is impossible because of the fact that the Hebrew language has no “J” sound! According to the Encyclopedia Britannica, 1991 under the heading “Yahweh”, here is how this name came into being:
