Moses is here ordered to make a double covering for the tabernacle, that it might not rain in, and that the beauty of those fine curtains might not be damaged. 1. There was to be a covering of hair camlet curtains, which were somewhat larger every way than the inner curtains, because they were to enclose them, and probably were stretched out at some little distance from them, Exo 26:7, etc. These were coupled together with brass clasps. The stuff being less valuable, the tacks were so; but the brass tacks would answer the intention as effectually as the golden ones. The bonds of unity may be as strong between curtains of goats' hair as between those of purple and scarlet. 2. Over this there was to be another covering, and that a double one (Exo 26:14), one of rams' skins dyed red, probably dressed with the wool on; another of badgers' skins, so we translate it, but it should rather seem to have been some strong sort of leather (but very fine), for we read of the best sort of shoes being made of it, Eze 16:10. Now observe here, (1.) That the outside of the tabernacle was coarse and rough, the beauty of it was in the inner curtains. Those in whom God dwells must labour to be better than they seem to be. Hypocrites put the best side outwards, like whited sepulchres; but the king's daughter is all glorious within (Psa 45:13); in the eye of the world black as the tents of Kedar, but, in the eye of God, comely as the curtains of Solomon, Sol 1:5. Let our adorning be that of the hidden man of the heart, which God values, Pe1 3:4. (2.) That where God places his glory he will create a defence upon it; even upon the habitations of the righteous there shall be a covert, Isa 6:5, Isa 6:6. The protection of Providence shall always be upon the beauty of holiness. God's tent will be a pavilion, Psa 27:5.

Curtains of goats' hair - Stuff made of goats' hair. See Clarke's note on Exo 25:4. This was the second covering.

And thou shalt make fifty loops on the edge of the one curtain, that is outmost in the coupling,.... Just in like manner, and in the same place where they were ordered to be put on the linen curtains, only these are not said to be of blue, but perhaps were wrought with goats hair: and fifty loops in the edge of the curtain which coupleth the second; these loops were set on each of the curtains where the two large pieces were to be coupled together.
And thou shalt make fifty loops on the edge of the one curtain, that is outmost in the coupling,.... Just in like manner, and in the same place where they were ordered to be put on the linen curtains, only these are not said to be of blue, but perhaps were wrought with goats hair: and fifty loops in the edge of the curtain which coupleth the second; these loops were set on each of the curtains where the two large pieces were to be coupled together.
Exodus 26:11

exo 26:11
exo 26:11
exo 26:11And thou shalt make fifty taches of brass,.... As these curtains were coarser, and also the loops, so the taches, hooks, or clasps, were made of meaner metal, but answered the purpose of joining and coupling together full as well: and put the taches into the loops; one end of the hook or clasp into the loop on one of the curtains, and the other end of the hook or clasp into the loop on the other curtain answering to it: and couple the tent together, that it may be one; that the tent or covering over the tabernacle might be one, as the tabernacle by the like means was, Exo 26:6.

curtains of goats' hair--These coarse curtains were to be one more in number than the others, and to extend a yard lower on each side, the use of them being to protect and conceal the richer curtains.