Here begins the revelation of those things that related to the Israelites' relationship with God (27:20-30:38). The preceding section (25:10-27:19) emphasized the revelation of the things that revealed God's character. The priesthood is the primary revelation in this new section.
"The approach to the Holy One, both within the biblical tradition and outside it, has always included some kind of mediatorial ministry, for it is inherent in any kind of high religion' that an otherwise unbridgeable chasm exist between ineffable deity and finite mankind.
"In earliest times, of course, Yahweh met directly with His creation, which in turn communicated with Him in word and act. With the passing of time and the rise of patriarchal familial and clan structures, the father of the household functioned also as its priest, the minister who stood between the family and its God. Finally--and even before the covenant at Sinai--there had developed some kind of order of priests, as Exodus 19:22 expressly declares."469
The responsibilities of the priests in Israel fell into four categories.
1. They were responsible to maintain the holy place of the tabernacle. This included burning incense each morning and evening, trimming and refilling the lamps each evening, and replacing the showbread each Sabbath.
2. They also maintained the tabernacle courtyard. This involved offering sacrifices each morning and evening and blessing the congregation after the daily sacrifice. It also meant keeping the fire on the brazen altar burning always, and periodically removing its ashes.
3. They were responsible to inspect and appraise people and sacrifices. These included lepers, wives accused of adultery, and things dedicated to the sanctuary.
4. Finally, they were to teach and counsel the people. They were to communicate the Mosaic Law to the congregation and decide difficult cases of law.
