C. F. Keil and Franz Delitzsch on Exodus 28:31-35

Exo 28:31-35

The third portion of Aaron’s official dress was the robe. To the ephod there also belonged a מעיל (from מעל to cover or envelope), an upper garment, called the robe of the ephod, the robe belonging to the ephod, “all of dark-blue purple” (hyacinth), by which we are not to imagine a cloak or mantle, but a long, closely-fitting coat; not reaching to the feet, however, as the Alex. rendering ποδήρης might lead us to suppose, but only to the knees, so as to show the coat (Exo 28:39) which was underneath.