Numbers 4:10-12
10
They shall put it and all its vessels within a covering of sealskin, and shall put it on the frame.
11
"On the golden altar they shall spread a blue cloth, and cover it with a covering of sealskin, and shall put in its poles.
12
"They shall take all the vessels of ministry, with which they minister in the sanctuary, and put them in a blue cloth, and cover them with a covering of sealskin, and shall put them on the frame.