Leviticus 8:8

(8) And he put the breast-plate upon him.—Called more fully, “the breast-plate of judgment,” which was also a distinctive pontifical garment, and which was made of the same costly materials and the same skilful work as the ephod. (See Exodus 28:15, &c.)

Also he put in the breast-plate the Urim and the Thummim.—Better, and he put into, &c. (see Exodus 28:30), that is, Moses put into the bag of the breast-plate (comp. Exodus 25:16) these material objects which were separate from the breast-plate, as well as from the gems set in the breast-plate. (See Exodus 28:30.)