Okay......as of late, here is a really 'different' theory I have as a possibility on this all. First of all, it is the same paradox, Muslim, Jew, Christian all supposedly for the same God, yet against eachother. Why are they fighting, they are all for the same God, but they see eachother as for different ones.
Jeremiah the WHOLE chap 35, he is sent to 'test' the Re′cha·bites, they were commanded by him (Jehovah) NEVER to time indefinite drink wine. Jeremiah told them they were commanded by Jehovah to do it, and they refused. They stayed faithful to his first commands. Jehovah saw that as them being obedient to him.
If that's the case, and then in Duet the song of Moses, Deut 32:8-12, showing the 'sons of adam (human) divided according to the sons of Israel (12), and Israel was Jehovah's 'allotment, inheritance'.
That, combined with Jesus saying he was sent only for the Jews.
If God sent the true message worldwide, to different cultures, and testing everyone to see if they remain faithful to him. To the commands that were given to THEM, not to others. I think in the NT somewhere speaks about in the manner in which one was existing when called, to 'remain' there.
I'll stop there.