Matthew Henry Presbyterian @wholebiblehenry

Directions are here given concerning the ephod, which was the outmost garment of the high priest. Linen ephods were worn by the inferior priests, Sa1 22:18. Samuel wore one when he was a child (Sa1 2:18), and David when he danced before the ark (Sa2 6:14); but this which the high priest only wore was called a golden ephod, because there was a great deal of gold woven into it.

Commenting on Exodus 28:6-14

John Gill Reformed Baptist @doctorgill

And thou shalt make ouches of gold. Or sockets of gold, to put the two onyx stones in, Exo 28:11 for of other ouches we read not, excepting the enclosings, in which the twelve stones of the breastplate were set, Exo 28:20 and these are again mentioned because of the chains to be fastened to them, of which in the following verse.

Adam Clarke Methodist @methodicalclarke

Ouches of gold - משבצת mishbetsoth, strait places, sockets to insert the stones in, from שבץ shabats, to close, enclose, straiten. Socket, in this place, would be a more proper translation, as ouch cannot be traced up to any legitimate authority. It appears sometimes to signify a hook, or some mode of attaching things together.