Exodus 26:4
Make loops of blue yarn on the edge of the last curtain
Exodus 26:5
Make 50 loops on the one curtain and make 50 loops on the edge of the curtain in the second set, so that the loops line up together.
Exodus 26:10-11
Make 50 loops on the edge of the one curtain, the outermost in the first set, and make 50 loops on the edge of the corresponding curtain of the second set.
Exodus 36:11-12
He made loops of blue yarn on the edge of the last curtain in the first set and did the same on the edge of the outermost curtain in the second set.
Exodus 36:17
He made 50 loops on the edge of the outermost curtain in the first set and 50 loops on the edge of the corresponding curtain in the second set.