No, the god Jehovah, evolved over thousands of years. The information is easy to find, search for the "Hebrew God and where he came from". There's also hints in the bible, I can't believe I never saw it, for 30 years in witness world. The Jehovah character was a lesser god, when the almighty god or "El (according to the bible) was assigning each lesser god a group of peoples (which in ancient times was the norm) he gave Israel to YHWH or Jehovah and this was his inheritance from "El" (Deuteronomy 32:8-9). I recommend getting a Hebrew interlinear, if not it's really hard to distinguish when they are referring to YHWH or El, it's cleverly been translated "Lord" and "Almighty God", I did my research using the interlinear if not, I don't think I ever would have ever seen the "Truth". Also, there's references in the bible of the "Volcanic" nature of YHWH in the beginning.
IC