Exodus 26:4-6

JPS_ASV_Byz(i) 4 And thou shalt make loops of blue upon the edge of the one curtain that is outmost in the first set; and likewise shalt thou make in the edge of the curtain that is outmost in the second set. 5 Fifty loops shalt thou make in the one curtain, and fifty loops shalt thou make in the edge of the curtain that is in the second set; the loops shall be opposite one to another. 6 And thou shalt make fifty clasps of gold, and couple the curtains one to another with the clasps, that the tabernacle may be one whole.