Numbers 4:12-14

Then they must take all the utensils of the service, with which they serve in the sanctuary, put them in a blue cloth, cover them with a covering of fine leather, and put them on a carrying beam. Also, they must take away the ashes from the altar and spread a purple cloth over it. Then they must place on it all its implements with which they serve there – the trays, the meat forks, the shovels, the basins, and all the utensils of the altar – and they must spread on it a covering of fine leather, and then insert its poles.