Hebrews 5:1
For every high priest chosen from among men is appointed [to act] on behalf of men in things relating to God, so that he may offer both gifts and sacrifices for sins.
Hebrews 8:3
For every high priest is appointed to offer both gifts and sacrifices; so it is essential for this One also to have something to offer.
Hebrews 10:11
Every priest stands [at his altar of service] ministering daily, offering the same sacrifices over and over, which are never able
Hebrews 2:17
Therefore, it was essential that He had to be made like His brothers (mankind) in every respect, so that He might [by experience] become a merciful and faithful High Priest in things related to God, to make atonement (propitiation) for the people’s sins [thereby wiping away the sin, satisfying divine justice, and providing a way of reconciliation between God and mankind].
Hebrews 9:9
for this [first or outer tabernacle] is a symbol [that is, an archetype or paradigm] for the present time. Accordingly both gifts and sacrifices are offered which are incapable of perfecting the conscience and renewing the [inner self of the] worshiper.
Hebrews 7:27
who has no day by day need, like those high priests, to offer sacrifices, first of all for his own [personal] sins and then for those of the people, because He [met all the requirements and] did this once for all when He offered up Himself [as a willing sacrifice].
Hebrews 11:4
By faith Abel offered to God a more acceptable sacrifice than Cain, through which it was testified of him that he was righteous (upright, in right standing with God), and God testified by accepting his gifts. And though he died, yet through [this act of] faith he still speaks.
Exodus 28:1-14
“Now bring your brother Aaron near, and his sons with him from among the sons of Israel, so that he may serve as priest to Me—Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron’s sons.
Exodus 29:1-37
“This is what you shall do to consecrate Aaron and his sons so that they may serve Me as priests: take one young bull and two rams, without blemish,
Leviticus 8:2
“Take Aaron and his sons with him, and the garments [which are symbols of their office], and the anointing oil, and the bull for the sin offering, and the two rams, and the basket of unleavened bread;
Leviticus 9:7
Moses said to Aaron, “Approach the altar and present your sin offering and your burnt offering and make atonement for yourself and for the people; and present the offering of the people and make atonement for them, just as the Lord has commanded.”
Leviticus 9:15-21
Then Aaron presented the people’s offering. He took the goat for the sin offering of the people, and killed it and offered it for sin, as he did the first.
Numbers 16:46-48
Moses said to Aaron, “Take a censer and put fire in it from the altar and lay incense on it; then bring it quickly to the congregation and make atonement for them, for wrath has gone forth from the Lord; the plague has begun!”
Numbers 18:1-3
So the Lord said to Aaron, “You and your sons and your father’s household (family) with you shall bear the guilt in connection with the sanctuary [that is, through your service as priests you will atone for the offenses which the people unknowingly commit when brought into contact with the manifestations of God’s presence]; and you and your sons with you shall bear the guilt in connection with your priesthood [that is, your own unintentional offenses].