The point to notice here is that this tribe was to retain the nomadic life when the other tribes became agricultural. The reason for it is plain. That ancient manner of life was looked upon as superior in a religious aspect to the agricultural life. In the first place, the ancestral life of Israel had been of that kind. Abraham, Isaac, and Jacob had been heads of nomadic families or tribes; and the pure and peaceful religious life, the intimate communion with God which they enjoyed, always dominated the imagination of the pious Israelite. Moreover the fundamental revelation had come to Moses when he was a shepherd in the waste. Further, the life of the shepherd is necessarily less continuously busy than that of the agriculturist; it has, therefore, more scope in it for contemplation; and in many countries and at various times shepherds have been a specially thoughtful, as well as a specially pious class. But, perhaps the chief reason was that the shepherd life was not only simple and frugal in itself, but it was also by its very conditions free from some of the greatest dangers to which the religious life of the Israelite in Canaan was exposed. When the bulk of the people adopted the settled life, they were not only thrown among the Canaanites, but they went to school them in all that concerned elaborate agriculture. This necessarily made the intercourse and connection between the two peoples extremely intimate, and was fruitful in evil results. From this the semi-nomadic portions of the people were to a great extent free, and they would seem to have been regarded as the guardians of a higher life and a purer tradition than others. They represented to the popular mind the Israel of ancient days, which had known nothing of the vices of cities, and in which the pure uncorrupted religion of Yahweh had held exclusive sway.