In The High Priest's Garments, W. W. Fereday illuminates the typical character of the ancient ritual. Because Israel's ritual pointed to Christ, the smallest details are given. Nothing is too small for notice that in any way speaks of God's beloved Son.
Let us clearly understand where priesthood comes in in the ways of God. When Israel was in Egypt, groaning under the yoke of Pharaoh, God did not provide a priest but a savior. But when the people were delivered, having come under the blood of the Lamb, and having passed through the Red Sea, then - and not untill then - did God say anything about a priest. In like manner today, the Savior is God's provision for the burdened sinner, and the priest is God's provision for the delivered saint. It is the "holy brethren, partakers of the heavenly calling", who are exhorted to consider the apostle and high priest of their confession (Hebrews 3:1). Priesthood is not designed to bring men into relationship with God but rather to help those who are already in relationship with God.