Numbers 11:24-25

24So Moses went out from God's Tent and he told the people the Lord's message. He chose 70 leaders of the Israelites and he put them round the Tent.

25Then the Lord came down in the cloud to speak to them. He took some of the authority of his Spirit that he had given to Moses. And he shared it with the 70 leaders. While God's Spirit stayed on them, they prophesied. But they did not do it again after that.