Exodus 39:20-22

Amplified Bible, Classic Edition

²⁰ And they made two [other] gold rings and attached them to the two shoulder pieces of the ephod underneath, in front, at its joining above the skillfully woven band of the ephod.

²¹ They bound the breastplate by its rings to those of the ephod with a blue lace, that it might lie upon the skillfully woven band of the ephod and that the breastplate might not be loosed from the ephod, as the Lord commanded Moses.

²² And he made the robe of the ephod of woven work all of blue.