Exodus 36:28

And he fastened the oracle by the rings that were on it to the rings of the ephod, which were fastened with [a string] of blue, joined together with the woven work of the ephod; that the oracle should not be loosed from the ephod, as the Lord commanded Moses.

And they made two golden rings, and put them on both the shoulders of the ephod under it, in front by the coupling above the connexion of the ephod.

And two boards made he for the corners of the tabernacle in the two sides.