81 The Lord spoke to Moses, saying: 2 Take Aaron and his sons with him, the vestments, the anointing oil, the bull of sin offering, the two rams, and the basket of unleavened bread; 3 and assemble the whole congregation at the entrance of the tent of meeting. 4 And Moses did as the Lord commanded him. When the congregation was assembled at the entrance of the tent of meeting, 5 Moses said to the congregation, "This is what the Lord has commanded to be done." 6 Then Moses brought Aaron and his sons forward, and washed them with water. 7 He put the tunic on him, fastened the sash around him, clothed him with the robe, and put the ephod on him. He then put the decorated band of the ephod around him, tying the ephod to him with it. 8 He placed the breastpiece on him, and in the breastpiece he put the Urim and the Thummim. 9 And he set the turban on his head, and on the turban, in front, he set the golden ornament, the holy crown, as the Lord commanded Moses. 10 Then Moses took the anointing oil and anointed the tabernacle and all that was in it, and consecrated them. 11 He sprinkled some of it on the altar seven times, and anointed the altar and all its utensils, and the basin and its base, to consecrate them. 12 He poured some of the anointing oil on Aaron's head and anointed him, to consecrate him. 13 And Moses brought forward Aaron's sons, and clothed them with tunics, and fastened sashes around them, and tied headdresses on them, as the Lord commanded Moses.
Matthew Henry's Commentary on Leviticus 8:1-13
Commentary on Leviticus 8:1-13
(Read Leviticus 8:1-13)
The consecration of Aaron and his sons had been delayed until the tabernacle had been prepared, and the laws of the sacrifices given. Aaron and his sons were washed with water, to signify that they ought to purify themselves from all sinful dispositions, and ever after to keep themselves pure. Christ washes those from their sins in his own blood whom he makes kings and priests to our God, Hebrews 10:22. The anointing of Aaron was to typify the anointing of Christ with the Spirit, which was not given by measure to him. All believers have received the anointing.