Wave offering and consecrated their garments

 Leviticus 8:22-36

He put all these in the hands of Aaron and his sons, and they waved them before the Lord as a wave offering.

Then Moses took them from their hands and burned them on the altar on top of the burnt offering as an ordination offering, a pleasing aroma, a food offering presented to the Lord. Moses also took the breast, which was his share of the ordination ram, and waved it before the Lord as a wave offering, as the Lord commanded Moses.

Then Moses took some of the anointing oil and some of the blood from the altar and sprinkled them on Aaron and his garments and on his sons and their garments. So he consecrated Aaron and his garments and his sons and their garments.

You must stay at the entrance to the tent of meeting day and night for seven days and do what the Lord requires, so you will not die; for that is what I have been commanded.

Why?

Moses consecrated Aaron and his sons their bodies and their garments. They stay in the the Tabernacle seven days.

Wave offering include herb and ram, herb have to burn, but ram could be eaten by sons of Aaron. All of these ceremony is holy to them.

To be a servant of the Lord have to be clean themselves and include their heart and their clothes.

How?

Serious look what I am serving before the Lord in the Church. Do I consecrated myself everyday?   Be humble before the Lord and men!