Exodus 26:18
You shall make twenty boards for the tabernacle, for the south side southward.
World English Bible (Public Domain)
In context
Before · Exodus 26:16–17
16Ten cubits shall be the length of a board, and one and a half cubits the width of each board. 17There shall be two tenons in each board, joined to one another: thus you shall make for all the boards of the tabernacle.
18You shall make twenty boards for the tabernacle, for the south side southward.