Exodus 26:4-6

International Standard Version

⁴ You are to make loops of blue material along the edge of the outermost curtain in the first set, and likewise you are to make loops along the edge of the outermost curtain in the second set. ⁵ You are to make 50 loops in the one curtain, and you are to make 50 loops along the edge of the curtain that is in the second set, with the loops opposite each other. ⁶ Then you are to make 50 gold clasps, and join the curtains to each other with the clasps so that the tent will be one piece.