Exodus 25:15 (KJV)

And 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.

And 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.

And 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.

And thou shalt make staves of shittim wood, and overlay them with gold.

And thou shalt put the staves into the rings by the sides of the ark, that the ark may be borne with them.

And thou shalt put into the ark the testimony which I shall give thee.

And thou shalt make a mercy seat of pure gold: two cubits and a half shall be the length thereof, and a cubit and a half the breadth thereof.

And thou shalt make two cherubims of gold, of beaten work shalt thou make them, in the two ends of the mercy seat.

And make one cherub on the one end, and the other cherub on the other end: even of the mercy seat shall ye make the cherubims on the two ends thereof.

And the cherubims shall stretch forth their wings on high, covering the mercy seat with their wings, and their faces shall look one to another; toward the mercy seat shall the faces of the cherubims be.