Exodus 36:11-13

Amplified Bible

¹¹ He made loops of blue on the edge of the outermost curtain in the first set; he also did this on the edge of the curtain that was outermost in the second set. ¹² He made fifty loops in the one curtain [of the first set] and fifty loops on the edge of the curtain which was in the second set; the loops were opposite one another. ¹³ He made fifty gold hooks and joined the curtains together with the hooks, so that the tabernacle became a unit.