Then Moses took some of the anointing oil and of the blood that was on the altar and sprinkled it on Aaron and his garments, and also on his sons and his sons' garments. So he consecrated Aaron and his garments, and his sons and his sons' garments with him.
Leviticus 8:30
Those beautiful, new priestly garments were permanently stained with blood and oil as soon as the first priests assumed their office. In part, this tells the priests they shouldn't be afraid to get dirty when necessary in the course of their work. It also tells us that the beauty of the garments wasn't their primary purpose. They were functional as well as costly.
Q1: Aaron wasn't qualified to touch the offerings until he had been consecrated. Why could Moses?
Q2: Moses temporarily took the role of priest in the ordination of Aaron and his sons. How was this possible?
A: In the wilderness Moses acted as both king and priest to the people. Like Melchizedek and #yeshua. Unlike Aaron, Moses had spent months being purified by the Divine Presence. He was consecrated by God's Fire, God's Grace, and his own continual obedience. He wasn't allowed to be a priest in the Tabernacle, but he could be a consecrator of priests.
Leviticus 8:27-29
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Compare the ear/thumb/toe ritual for the priests in Leviticus 8 to that for the leper in Leviticus 14. Why are they the same?
The leper and priest are both anointed on the ear/thumb/toe with blood. They both sit outside the tent for 7 days.
The leper was separated from the people for sin and must be brought near the people before God. The priest was one of the people, but is now being separated for a special purpose.
The leper was set apart in sin. The priest is now set apart in righteousness.
After the ear/thumb/toe atonement, both priest and leper are enabled to take their place in the community.