Numbers 9:20-22

Young's Literal Translation

²⁰ and so when the cloud is a number of days over the tabernacle; by the command of Jehovah they encamp, and by the command of Jehovah they journey.

²¹ And so when the cloud is from evening till morning, when the cloud hath gone up in the morning, then they have journeyed; whether by day or by night, when the cloud hath gone up, then they have journeyed.

²² Whether two days, or a month, or days, in the cloud prolonging itself over the tabernacle, to tabernacle over it, the sons of Israel encamp, and journey not; and in its being lifted up they journey;