Parallel
Exodus 39:21
World English Bible British Edition · Berean Standard Bible
They bound the breastplate by its rings to the rings of the ephod with a lace of blue, that it might be on the skilfully woven band of the ephod, and that the breastplate might not come loose from the ephod, as the LORD commanded Moses.
Then they tied the rings of the breastpiece to the rings of the ephod with a cord of blue yarn, so that the breastpiece was above the waistband of the ephod and would not swing out from the ephod, just as the LORD had commanded Moses.