Exodus 29:1-9
“Now this is what you are to do to consecrate Aaron and his sons to serve Me as priests: Take a young bull and two rams without blemish, / along with unleavened bread, unleavened cakes mixed with oil, and unleavened wafers anointed with oil. Make them out of fine wheat flour, / put them in a basket, and present them in the basket, along with the bull and the two rams. ...

Leviticus 8:5-13
And Moses said to them, “This is what the LORD has commanded to be done.” / Then Moses presented Aaron and his sons and washed them with water. / He put the tunic on Aaron, tied the sash around him, clothed him with the robe, and put the ephod on him. He tied the woven band of the ephod around him and fastened it to him. ...

Hebrews 9:6-10
When everything had been prepared in this way, the priests entered regularly into the first room to perform their sacred duties. / But only the high priest entered the second room, and then only once a year, and never without blood, which he offered for himself and for the sins the people had committed in ignorance. / By this arrangement the Holy Spirit was showing that the way into the Most Holy Place had not yet been disclosed as long as the first tabernacle was still standing. ...

2 Chronicles 29:5
“Listen to me, O Levites,” he said. “Consecrate yourselves now and consecrate the house of the LORD, the God of your fathers. Remove from the Holy Place every impurity.

Exodus 40:12-15
Then bring Aaron and his sons to the entrance to the Tent of Meeting and wash them with water. / And you are to clothe Aaron with the holy garments, anoint him, and consecrate him, so that he may serve Me as a priest. / Bring his sons forward and clothe them with tunics. ...

Leviticus 16:32-34
The priest who is anointed and ordained to succeed his father as high priest shall make atonement. He will put on the sacred linen garments / and make atonement for the Most Holy Place, the Tent of Meeting, and the altar, and for the priests and all the people of the assembly. / This is to be a permanent statute for you, to make atonement once a year for the Israelites because of all their sins.” And all this was done as the LORD had commanded Moses.

1 Chronicles 23:13
The sons of Amram: Aaron and Moses. Aaron and his descendants were set apart forever to consecrate the most holy things, to burn incense before the LORD, to minister before Him, and to pronounce blessings in His name forever.

Hebrews 7:27
Unlike the other high priests, He does not need to offer daily sacrifices, first for His own sins and then for the sins of the people; He sacrificed for sin once for all when He offered up Himself.

Exodus 28:1-3
“Next, have your brother Aaron brought to you from among the Israelites, along with his sons Nadab, Abihu, Eleazar, and Ithamar, to serve Me as priests. / Make holy garments for your brother Aaron, to give him glory and splendor. / You are to instruct all the skilled craftsmen, whom I have filled with a spirit of wisdom, to make garments for Aaron’s consecration, so that he may serve Me as priest.

Leviticus 21:10
The priest who is highest among his brothers, who has had the anointing oil poured on his head and has been ordained to wear the priestly garments, must not let his hair hang loose or tear his garments.

1 Peter 2:5
you also, like living stones, are being built into a spiritual house to be a holy priesthood, offering spiritual sacrifices acceptable to God through Jesus Christ.

Exodus 30:30
Anoint Aaron and his sons and consecrate them to serve Me as priests.

Leviticus 9:1-7
On the eighth day Moses summoned Aaron and his sons and the elders of Israel. / He said to Aaron, “Take for yourself a young bull for a sin offering and a ram for a burnt offering, both without blemish, and present them before the LORD. / Then speak to the Israelites and say, ‘Take a male goat for a sin offering, a calf and a lamb—both a year old and without blemish—for a burnt offering, ...

Hebrews 5:1-4
Every high priest is appointed from among men to represent them in matters relating to God, to offer gifts and sacrifices for sins. / He is able to deal gently with those who are ignorant and misguided, since he himself is subject to weakness. / That is why he is obligated to offer sacrifices for his own sins, as well as for the sins of the people. ...

Exodus 19:22
Even the priests who approach the LORD must consecrate themselves, or the LORD will break out against them.”