Numbers 9:16-18

Young's Literal Translation

¹⁶ so it is continually; the cloud covereth it, also the appearance of fire by night.

¹⁷ And according to the going up of the cloud from off the tent and afterwards do the sons of Israel journey; and in the place where the cloud doth tabernacle, there do the sons of Israel encamp;

¹⁸ by the command of Jehovah the sons of Israel journey, and by the command of Jehovah they encamp; all the days that the cloud doth tabernacle over the tabernacle they encamp.