As we are reading about the priests under the old covenant, keep in mind at least two things: (1) these pictures of the priests (their job and clothes) are shadows of our great high priest - Jesus Christ! (Exodus 28:12; Exodus 28:30) and (2) the church is a royal priesthood who is to be "Holy to the LORD" (Exodus 39:30; cf 1 Peter 2:9).