Exodus 36:12

They made it of the same material according to the making of it, of gold, and blue, and purple, and spun scarlet, and fine linen twined, as the Lord commanded Moses;

Fifty loops made he in one curtain, and fifty loops made he in the edge of the curtain which was in the coupling of the second: the loops held one curtain to another.

He made fifty loops in the one curtain, and he made fifty loops in the edge of the curtain that was in the second coupling. The loops were opposite to one another.