Exodus 26:4

And thou shalt make loops of blue upon the edge of the one curtain from the selvedge in the coupling; and likewise shalt thou make in the uttermost edge of another curtain, in the coupling of the second.

Cross-reference

Exodus 26:5 continues the instruction by specifying fifty loops per curtain, directly building on the loop-making command here.

Exodus 26:10 gives a parallel instruction for the second curtain set, with fifty loops on the outer edge, mirroring the design here.

Exodus 26:11 uses brass clasps to join the second set of curtains, parallel to the loops here but for a different layer and material.

Exodus 36:11 records the actual construction of these blue loops, exactly following the pattern commanded here.

Exodus 36:12 records the making of fifty loops on each curtain, fulfilling the instructions from here and verse 5.

Exodus 36:17 describes making fifty loops on the second curtain set, a parallel execution for the other layer.