In the sides of the boards shall be made two mortises, whereby one board may be joined to another board: and after this manner shall all the boards be prepared.
With forty sockets of silver. Two sockets were put under one board on the two sides of the corners, where the mortises of the sides end in the corners.
There were two mortises throughout every board, that one might be joined to the other. And in this manner he made for all the boards of the tabernacle.