Numbers 4:7, 9

And over the table of the bread of the Presence they shall spread a cloth of blue and put on it the plates, the dishes for incense, the bowls, and the flagons for the drink offering; the regular showbread also shall be on it.

And they shall take a cloth of blue and cover the lampstand for the light, with its lamps, its tongs, its trays, and all the vessels for oil with which it is supplied.