YOU tell Jehovah that, then!
I should have said "abuse of the concept is deadly." Think for a minute -- oxygen can be dangerous, too. Monotheism reinforces a streak of xenophobia not found in polytheistic religions.
Also, it is apparent from the early books of the OT that the Hebrews considered there might actually be other gods, but that none of them measured up to their particular diety. It is quite possible this is the case even today.