Exodus 26:15-17

Authorized (King James) Version

¹⁵ And thou shalt make boards for the tabernacle of shittim wood standing up. ¹⁶ Ten cubits shall be the length of a board, and a cubit and a half shall be the breadth of one board. ¹⁷ Two tenons shall there be in one board, set in order one against another: thus shalt thou make for all the boards of the tabernacle.