Numbers 4:13
And they are to take away the burned waste from the altar, and put a purple cloth on it;
Exodus 27:1-8
And make an altar of hard wood, a square altar, five cubits long, five cubits wide and three cubits high.
Exodus 39:1
And from the needlework of blue and purple and red they made the robes used for the work of the holy place, and the holy robes for Aaron, as the Lord had given orders to Moses.
Exodus 39:41
The robes for use in the holy place, and the holy robes for Aaron and his sons when acting as priests.
Leviticus 6:12-13
The fire on the altar is to be kept burning; it is never to go out; every morning the priest is to put wood on it, placing the burned offering in order on it, and there the fat of the peace-offering is to be burned.
Numbers 4:6-9
And putting over it the leather cover and over that a blue cloth; and putting its rods in place.
Numbers 4:11-12
On the gold altar they are to put a blue cloth, covering it with a leather cover; and they are to put its rods in their places.