2. Mose 26:25

Sixteen sockets were to be made for these eight boards, two for each. - Exo 26:26-29. To fasten the boards, that they might not separate from one another, bars of acacia-wood were to be made and covered with gold, five for each of the three sides of the dwelling; and though it is not expressly stated, yet the reference to rings in Exo 26:29 as holders of the bars (לבּריחים בּתּים) is a sufficient indication that they were passed through golden rings fastened into the boards.

Moses here receives instructions, I. Concerning the inner curtains of the tent or tabernacle, and the coupling of those curtains (Exo 26:1-6). II. Concerning the outer curtains which were of goats' hair, to strengthen the former (Exo 26:7-13). III. Concerning the case or cover which was to secure it from the weather (Exo 26:14). IV. Concerning the boards which were to be reared up to support the curtains, with their bars and sockets (v. 15-30). V. The partition between the holy place and the most holy (Exo 26:31-35). VI. The veil for the door (Exo 26:36, Exo 26:37). These particulars, thus largely recorded, seem of little use to us now; yet, having been of great use to Moses and Israel, and God having thought fit to preserve down to us the remembrance of them, we ought not to overlook them. Even the antiquity renders this account venerable.