You are to construct upright frames of acacia wood for the tabernacle.
Very particular directions are here given about the boards of the tabernacle, which were to bear up the curtains, as the stakes of a tent which had need to be strong, Isa 54:2. These boards had tenons which fell into the mortises that were made for them in silver bases. God took care to have every thing strong, as well as fine, in his tabernacle.
Commenting on Exodus 26:15-30
Ten cubits shall be the length of a board,.... Or five yards, according to the common cubit: and a cubit and a half shall be the breadth of one board; or three quarters of a yard; and from hence we may learn what were the height and the length of the tabernacle; according to the common computation of a cubit, it was but five yards...
thou shalt make boards . . . rear up the tabernacle according to the fashion . . . which was showed thee--The tabernacle, from its name as well as from its general appearance and arrangements, was a tent; but from the description given in these verses, the boards that formed its walls, the five (cross) bars that strengthened them, and the middle bar that "reached...