Yahweh, the god of Israel, is the one and real God.
That's a hard lesson for a modernising government to learn,
or for a people who just want life to run easily and safely in its familiar channels,
or for a prophet of God.

Note:  the prologue should be read as part of the story, a "launch pad" that sends the rest of the story on its way. It is not a foreword or preface, which could be skipped.