Numbers 4:4-6

American Standard Version

⁴ This is the ^[a]service of the sons of Kohath in the tent of meeting, about the most holy things: ⁵ when the camp setteth forward, Aaron shall go in, and his sons, and they shall take down the veil of the screen, and cover the ark of the testimony with it, ⁶ and shall put thereon a covering of sealskin, and shall spread over it a cloth all of blue, and shall put in the staves thereof.