Exodus 25:10-16

10And they shall make an ark of shittim wood: two cubits and a half shall be the length thereof, and a cubit and a half the breadth thereof, and a cubit and a half the height thereof. 11And thou shalt overlay it with pure gold, within and without shalt thou overlay it, and shalt make upon it a crown of gold round about. 12And thou shalt cast four rings of gold for it, and put them in the four corners thereof; and two rings shall be in the one side of it, and two rings in the other side of it. 13And thou shalt make staves of shittim wood, and overlay them with gold. 14And thou shalt put the staves into the rings by the sides of the ark, that the ark may be borne with them. 15The staves shall be in the rings of the ark: they shall not be taken from it. 16And thou shalt put into the ark the testimony which I shall give thee.