Exodus 26:4-6

New International Version

⁴ Make loops of blue material along the edge of the end curtain in one set, and do the same with the end curtain in the other set. ⁵ Make fifty loops on one curtain and fifty loops on the end curtain of the other set, with the loops opposite each other. ⁶ Then make fifty gold clasps and use them to fasten the curtains together so that the tabernacle is a unit.^(A)