Exodus 27:6-10

And thou shalt make staves for the altar, staves of shittim wood, and overlay them with brass.

And the staves shall be put into the rings, and the staves shall be upon the two sides of the altar, to bear it.

Hollow with boards shalt thou make it: as it was shewed thee in the mount, so shall they make it.

And thou shalt make the court of the tabernacle: for the south side southward there shall be hangings for the court of fine twined linen of an hundred cubits long for one side:

And the twenty pillars thereof and their twenty sockets shall be of brass; the hooks of the pillars and their fillets shall be of silver.