Numbers 4:8
4:8 They must spread over them a scarlet cloth, and cover the same with a covering of fine leather; and they must insert its poles.
Numbers 4:11
4:11 “They must spread a blue cloth on the gold altar, and cover it with a covering of fine leather; and they must insert its poles.
Numbers 9:16
9:16 This is the way it used to be continually: The cloud would cover it by day, and there was a fiery appearance by night.