Exodus 26:19, 21, 25, 32

You shall 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

and their forty sockets of silver; two sockets under one board and two sockets under another board.

There shall be eight boards with their sockets of silver, sixteen sockets; two sockets under one board and two sockets under another board.

You shall hang it on four pillars of acacia overlaid with gold, their hooks also being of gold, on four sockets of silver.