Exodus 40:37-38

New Revised Standard Version, Anglicised Catholic Edition

³⁷ but if the cloud was not taken up, then they did not set out until the day that it was taken up. ³⁸ For the cloud of the Lord was on the tabernacle by day, and fire was in the cloud^[a] by night, before the eyes of all the house of Israel at each stage of their journey.