[MarkBsnr]

perhaps, but the "Christians" that were there in the Nejd were those who were chased out of the Roman Empire which was orthodox or miaphysite (Coptic, Syriac, Armenian) and the Persian which was Assyrian these included groups as vague as Gnostics or Nazoreans (who believed that Jesus was the child of the Father with Sophia (the Holy Spirit) as the Mother) or the Gospel of Basilides or even Arians. Add that to pre-pagan Islamic beliefs and Zoroastrianism and add in the Jewish laws and transfer the chosen people's right to the Arabs and you have a potent mix.

True, but again, Persians are not Arabs, to cut a fine point. And it took Muhammed and a fine band of brigands to take advantage of it.

[Cronos]

True, persians are different, but their influence was felt deep into Arabia. Oman for instance had an irani colony. And Zoroastrian is ancient, so its influences would be felt among semitics