Numbers 4:4-6

Young's Literal Translation

⁴ `This [is] the service of the sons of Kohath in the tent of meeting, the holy of holies:

⁵ that Aaron and his sons have come in, in the journeying of the camp, and have taken down the vail of the hanging, and have covered with it the ark of the testimony;

⁶ and have put on it a covering of badger skin, and have spread a garment completely of blue above, and have placed its staves.