Now viewing scripture range from the book of Numbers chapter 4:3 through chapter 4:6...
3 From thirty years old and upward even until fifty years old, all that enter into the host, to do the work in the tabernacle of the congregation.
4 This shall be the service of the sons of Kohath in the tabernacle of the congregation, about the most holy things:
5 And when the camp setteth forward, Aaron shall come, and his sons, and they shall take down the covering vail, and cover the ark of testimony with it:
6 And shall put thereon the covering of badgers' skins, and shall spread over it a cloth wholly of blue, and shall put in the staves thereof.