John Gills Exposition of the Bible Commentary - Exodus 28:25
And the other two ends of the two wreathen chains thou shalt fasten in the two ouches ,.... In which the two onyx stones were set on the shoulder pieces of the ephod, and were as buttons to them; probably there were rings to those ouches, into which these ends of the wreathen chains of gold, reaching from the breastplate, were put; or however, by some means or other they were fastened to these ouches or sockets: and put them in the shoulder pieces of the ephod before it ; that is, on the... read more
Matthew Henry's Complete Commentary - Exodus 28:15-30
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, Exod. 28:16. This was fastened to the ephod with wreathen chains of gold (Exod. 28:13, 14, 22) both at top and bottom, so that the breast-plate might not be loosed from the ephod, Exod. 28:28. The ephod was the garment of service; the breast-plate of judgment was an... read more