This primary polytheism is seen to the full in that constant resort of Israelites to neighbouring cults, against which so much of the Hebrew doctrine is directed. To understand their practice the modern reader has to get rid of the hallucination imposed on Christendom by its idea of revelation. The cult of Yahweh was no primordial Hebrew creed, deserted by backsliding idolaters, but a finally successful tyranny of one local cult over others. It is probable that it was originally not Palestinian, but Sinaitic, and that Yahweh became the God of Caleb-Judah only under David. [345] Therefore, without begging the question as to the moral sincerity of the prophets and others who identified Yahwism with morality, we must always remember that they were on their own showing devotees of a special local worship, and so far fighting for their own influence. Similar prophesying may conceivably have been carried on in connection with the same or other God-names in other localities, and the extant prophets freely testify that they had Yahwistic opponents; but the circumstance that Yahweh was worshipped at Jerusalem without any image might be an important cause of differentiation in the case of that cult. In any case it must have been through simple "exclusivism" that they reached any form of "monotheism." [346] The inveterate usage, in the Bible-making period, of forging and interpolating ancient or pretended writings, makes it impossible to construct any detailed history of the rise of Yahwism. We can but proceed upon data which do not appear to lend themselves to the purposes of the later adaptors. In that way we see cause to believe that at one early centre the so-called ark of Yahweh contained various objects held to have supernatural virtue. [347] In the older historic documents it has, however, no such sacredness as accrues to it later, [348] and no great traditional prestige. This ark, previously moved from place to place as a fetish, [349] is said to have been transferred to Jerusalem by the early king David, [350] whose story, like that of his predecessors Saul and his son Solomon, is in part blended with myth.