Moses gathered these seventy elders of novel extraction and of lofty and pious character round about the tent in which God used to reveal Himself, bidding thirty of them take their stand on the south side, thirty on the northern, and ten on the eastern, whereas he himself stood on the western side. For this tent was thirty cubits long and ten cubits wide, so that a cubit each was apportioned to the elders.
God was so pleased with the appointment of the elders that, just as on the day of the revelation, He descended from heaven and permitted the spirit of prophecy to come upon the elders, so that they received the prophetic gift to the end of their days, as God had put upon them of the spirit of Moses. But Moses' spirit was not diminished by this, he was like a burning candle from which many others are lighted, but which is not therefore diminished; and so likewise was the wisdom of Moses unimpaired.
Even after the appointment of the elders did Moses remain the leader of the people, for he was the head of this Sanhedrin of seventy members which he guided and directed.