Numbers 4:4-6

New Century Version

⁴ “The Kohathites are responsible for the most holy things in the Meeting Tent. ⁵ When the Israelites are ready to move, Aaron and his sons must go into the Holy Tent, take down the curtain, and cover the Ark of the Agreement with it. ⁶ Over this they must put a covering made from fine leather, then spread the solid blue cloth over that, and put the poles in place.