You shall make two rings of gold, and put them at the two ends of the breastpiece, on its inside edge next to the ephod.
The most considerable of the ornaments of the high priest was this breast-plate, a rich piece of cloth, curiously wrought with gold and purple, etc., two spans long and a span broad, so that, being doubled, it was a span square, Exo 28:16.
Commenting on Exodus 28:15-30
And two other rings of gold thou shalt make,.... This is the third pair of rings ordered to be made, the two other pair were for the four ends or corners of the breastplate, but this pair was for the ephod: and shalt put them on the two sides of the ephod; one on the right and the other on the left: underneath, towards the...
And thou shalt make two rings of gold, and thou shalt put them upon the two ends of the breastplate in the border thereof, which [is] in the side of the ephod inward. (l) Which are beneath.