Exodus 36:23 in the King James Version
And he made boards for the tabernacle; twenty boards for the south side southward:
Context
22 Each board had two tenons, joined to one another. He made all the boards of the tabernacle this way.
23 He made the boards for the tabernacle, twenty boards for the south side southward.
24 He made 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.