Exodus 26:15, 26, 37

And thou shalt make the boards for the tabernacle of acacia wood, standing up.

And thou shalt make bars of acacia wood: five for the boards of the one side of the tabernacle

And thou shalt make for the screen five pillars of acacia, and overlay them with gold: their hooks shall be of gold: and thou shalt cast five sockets of brass for them.