Both clans and tribes were designated by the name of some ancestor from whom they claimed to be descended, and who appears in some cases to have been a god for whom they had a special devotion; some writers have believed that this was also the origin of the names given to several of the tribes, such as Gad, “Good Fortune,” or of the totems of the hyena and the dog, in Arabic and Hebrew, “Simeon” and “Caleb.” * Gad, Simeon, and Caleb were severally the ancestors of the families who ranged themselves under their respective names, and the eponymous heroes of all the tribes were held to have been brethren, sons of one father, and under the protection of one God. He was known as the Jahveh with whom Abraham of old had made a solemn covenant; His dwelling-place was Mount Sinai or Mount Seîr, and He revealed Himself in the storm;** His voice was as the thunder “which shaketh the wilderness,” His breath was as “a consuming fire,” and He was decked with light “as with a garment.” When His anger was aroused, He withheld the dew and rain from watering the earth; but when His wrath was appeased, the heavens again poured their fruitful showers upon the fields.*** * Simeon is derived by some from a word which at times denotes a hyena, at others a cross between a dog and a hyena, according to Arab lexicography. With regard to Caleb, Renan prefers a different interpretation; it is supposed to be a shortened form of Kalbel, and “Dog of El” is a strong expression to denote the devotion of a tribe to its patron god. ** Cf. the graphic description of the signs which accompanied the manifestations of Jahveh in the _Song of Deborah (Judges_ v. 4, 5), and also in 1 _Kings_ xix. 11-13. *** See 1 _Kings_ xvii., xviii., where the conflict between Elijah and the prophets of Baal for the obtaining of rain is described. He is described as being a “jealous God,” brooking no rival, and “visiting the iniquity of the fathers upon the children unto the third and fourth generation.” We hear of His having been adored under the figure of a “calf,” * and of His Spirit inspiring His prophets, as well as of the anointed stones which were dedicated in His honour. The common ancestor of the nation was acknowledged to have been Jacob, who, by his wrestling with God, had obtained the name of Israel; the people were divided theoretically into as many tribes as he had sons, but the number twelve to which they were limited does not entirely correspond with all that we know up to the present time of these “children of Israel.” Some of the tribes appear never to have had any political existence, as for example that of Levi,** or they were merged at an early date into some fellow-tribe, as in the case of Reuben with Gad;*** others, such as Ephraim, Manasseh, Benjamin, and Judah, apparently did not attain their normal development until a much later date.