(24) They shall be coupled together beneath.--The corner boards were to be coupled to the others in two places, below and above, in each place by means of one ring. Rings, through which passed the ends of the bars mentioned in Exodus 26:26-29, are supposed to be meant.

Verse 24. - They shall be coupled together beneath... unto one ring. This is very obscure, and might be explained in several ways. Perhaps it is best to suppose that the coupling was by the "bars," cf. vers. 26-29, the ends of which fitted into a sort of double ring, like the figure 8, attached to the corner posts. Above the head. Rather "at" or near the head."

26:15-30 The sockets of silver each weighed about 115 pounds; they were placed in rows on the ground. In every pair of these sockets, a strong board of shittim-wood, covered with plates of gold, was fitted by mortises and tenons. Thus walls were formed for the two sides, and for the west end. The wall was further held together by bars, which passed through rings of gold. Over this the curtains were spread. Though movable, it was strong and firm. The materials were very costly. In all this it was a type of the church of God, built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief Corner-stone, Eph 2:20,21.And they shall be coupled together beneath,.... At the bottom of the boards or planks:

and they shall be coupled together above the head of it unto one ring at the top of the boards there was a ring, to which they were coupled and fastened, and so at the bottom of them, though not expressed: some understand this of all the planks, both at the two sides and at the west end; but it seems rather to respect only the corner planks, since it follows:

thus shall it be for them both, they shall be for the two corners; which were coupled and joined alike at each corner as if they were twins, as the word used signifies; or the meaning is, that these were double boards, and so like twins, which were so closely put together that they seemed but one board; which was done that the corners might be thicker and stronger, and so for the greater firmness of the building.