Exodus 39:21 Revised Version 1885 (RV1885)

And they did bind the breastplate by the rings thereof unto the rings of the ephod with a lace of blue, that it might be upon the cunningly woven band of the ephod, and that the breastplate might not be loosed from the ephod; as the Lord commanded Moses.

Exodus 39

Exodus 39:16-30