Leviticus 8 & 9 are about the ordination of Aaron and his sons as priests and the beginning of their ministry. The Lord directed Moses to bring Aaron and his sons before the Tabernacle and gather the people, and then the Lord commanded Moses to wash them with water and dress them with the holy garments. Aaron was dressed with a tunic, sash, ephod, breastpiece, Urim and Thummim, turban, diadem, etc. The sons of Aaron were dressed similarly and they all were consecrated with anointing oil. Then they performed the sin offering, the burnt offering, and a ram was slaughtered for the ordination also. Moses said, "What has been done today was commanded by the Lord to make atonement for you... and Aaron and his sons did everything the Lord commanded through Moses". They came with the entire assembly near the Tabernacle and stood before the Lord and Moses said, "This is what the Lord has commanded you to do, so that the glory of the Lord may appear to you." Moses then instructed the priests how to make the offerings as atonement for themselves and the people. "Then Aaron lifted his hands toward the people and blessed them... Moses and Aaron then went into the Tent of Meeting and when they came out, the glory of the Lord appeared to all the people. Fire came out from the presence of the Lord and consumed the offerings and the fat portions on the alter and when all the people saw it, they shouted for joy and fell facedown."