Exodus 26:3-5

26:3 Five curtains are to be joined, one to another, and the other five curtains are to be joined, one to another. 26:4 You are to make loops of blue material along the edge of the end curtain in one set, and in the same way you are to make loops in the outer edge of the end curtain in the second set. 26:5 You are to make fifty loops on the one curtain, and you are to make fifty loops on the end curtain which is on the second set, so that the loops are opposite one to another.

Exodus 26:10

26:10 You are to make fifty loops along the edge of the end curtain in one set and fifty loops along the edge of the curtain that joins the second set.

Exodus 36:10-12

36:10 He joined five of the curtains to one another, and the other five curtains he joined to one another. 36:11 He made loops of blue material along the edge of the end curtain in the first set; he did the same along the edge of the end curtain in the second set. 36:12 He made fifty loops on the first curtain, and he made fifty loops on the end curtain that was in the second set, with the loops opposite one another.

Exodus 36:17

36:17 He made fifty loops along the edge of the end curtain in the first set and fifty loops along the edge of the curtain that joined the second set.