Many features of the sacred tradition show that the worship of Jehovah was originally foreign to Israel. To ancient Israel Jehovah dwells on Sinai, which, therefore, is the original seat of his worship. Moreover, confused as the accounts may seem in some particulars, the old tradition explicitly states that Moses, who imposes the worship of Jehovah upon Israel, is the son-in-law of the priest of an Arabian race; that is, that the priesthood of Moses and Levi is connected with an older non-Israelitish Jehovah priesthood. This father-in-law of Moses is called in Exodus iii. 1, Jethro the priest of the Midianites, and in Exodus ii. 18, Reuel. Exodus xviii. contains a fairly authentic account of Jethro by the Elohist, and yet it is questionable whether this account really refers to him. It is, however, probable. In Numbers x. 29, his name appears as Hobab. And in Judges i. 16, the Kenites are brought into connection with the father-in-law of Moses; Judges iv. 2 likewise calls Hobab, Moses’ father-in-law, a Kenite; he, therefore, should rather have been called a priest of the Kenites. That the Arabic or nomadic race, from which Moses borrowed the worship of Jehovah, was the tribe of the Kenites, is proved by the later history of this people, who henceforth are closely interwoven with the worship of Jehovah. According to Numbers x. 29, and Judges i. 16, the Kenites joined the children of Israel in their journey to the land west of Jordan, and according to the latter passage “they went up out of the city of palm trees (Jericho), with the children of Judah into the wilderness of Judah.” In the south of the district of Judah, we meet in the earliest ages of the Kings a nomadic Kenite race, which was in friendly relations with Judah (1 Samuel xxx.), although dwelling among the Amalekites (1 Samuel xv. 6). It is questionable whether, after such a definite proof as the latter passages, it can be maintained that the Kenites were in alliance with the Midianites, especially as the land of Midian lies on the east of the Persian Gulf, and the Midianites at the time of the birth of the Jewish kingdom lived on the east of Jordan. In this connection may be cited the fact that a single Kenite clan was nomadic in the north, and that Ephraim was, according to Judges v. 14, of partly Amalekitish origin. Nevertheless these are all only surmises. The scarcity of the records deprives us of any clear light on the ancient ethnological relations.