Have you ever read any Old Testament person saying "God save me from the fires of hell"? Or "hallelujah, father and holy spirit", more precisely, "the lord our god is a trinity(or a twoity)"? There are different concepts between the old and new testament with different "revelations" concerning what happens after the judgment and the person of god. Yet god never changes or lies, therefore, why did the gentiles get a more comprehensive understanding, above gods chosen people? Millions of OT jews are going to be shocked!