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.