Yahwism presents itself under a variety of aspects, and the history of Israel's relations to the God Yahweh (whose name is not necessarily of Israelite origin) can hardly be disentangled amid the complicated threads of the earlier history.
The view that the seeds of Yahwism were planted in the young Israelite nation in the days of the " exodus " conflicts with the belief that the worship of Yahweh began in the pre-Mosaic age.
The course of the dynasty of Jehu - the reforms, the disastrous Aramaean wars, and, at length, Yahweh's " arrow of victory " - constituted an epoch in the Israelite history, and it is regarded as such.3 The problem of the history of Yahwism depends essentially upon the view adopted as to the date and origin of the biblical details and their validity for the various historical and religious conditions they presuppose.
Yahwism is a religion which appears upon a soil saturated with ideas and usages which find their parallel in extrabiblical sources and in neighbouring lands.
But Yahwism, like Islam, had its sects and tendencies, and the opponents to the stricter ritualism always had followers.