Exodus 26:18-20

American Standard Version

¹⁸ And thou shalt make the boards for the tabernacle, twenty boards for the south side southward. ¹⁹ And thou shalt make forty sockets of silver under the twenty boards; two sockets under one board for its two tenons, and two sockets under another board for its two tenons: ²⁰ and for the second side of the tabernacle, on the north side, twenty boards,