Numbers 11:24
And Moses will go forth, and will speak to the people the words of Jehovah; and he will gather the seventy men, of the old men of the people, and he will cause them to stand round about the tent
Numbers 11:16
And Jehovah will say to Moses, Gather to me seventy men of the old men of Israel, whom thou knewest that they were old men of the people, and their scribes; and take them to the tent of appointment, and they shall stand there with thee.
Numbers 11:26
And two men remained in the camp, the name of the one Eldad, and the name of the second, Medad: and the spirit will encamp upon them; and they among those being written, and they will not go forth to the tent, and they will prophesy in the camp.