The Lord said to Moses, “Behold, I will come to you in a thick cloud, so that the people may hear when I speak with you and may believe and trust in you forever.” Then Moses repeated the words of the people to the Lord.
For throughout all their journeys, the cloud of the Lord was on the tabernacle by day, and there was fire in it by night, in the sight of all the house of Israel.
Then the Lord came down in the cloud and spoke to him; and He took some of the Spirit who was upon Moses and put Him upon the seventy elders. When the Spirit rested upon them, they prophesied [praising God and declaring His will], but they did not do it again. [Num 11:29]