Exodus 26:18-20

Amplified Bible

¹⁸ You shall make the boards for the tabernacle [in the following quantities]: twenty boards for the south side. ¹⁹ You shall make forty silver sockets under the twenty boards, two sockets under each board for its two dovetails, and two sockets under another board for its two dovetails; ²⁰ for the north side of the tabernacle there shall be twenty boards,