Hebrews 5:4

And no man takes this honor unto himself, but he that is called of God, as was Aaron.

Exodus 28:1

And take unto you Aaron your brother, and his sons with him, from among the children of Israel, that he may minister unto me in the priest's office, even Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.

Numbers 16:40

To be a memorial unto the children of Israel, that no stranger, who is not of the descendants of Aaron, come near to offer incense before the LORD; that he become not as Korah, and as his company: as the LORD said to him by the hand of Moses.

1 Chronicles 23:13

The sons of Amram; Aaron and Moses: and Aaron was separated, that he should sanctify the most holy things, he and his sons forever, to burn incense before the LORD, to minister unto him, and to give the blessing in his name forever.

2 Chronicles 26:18

And they withstood Uzziah the king, and said unto him, It belongs not unto you, Uzziah, to burn incense unto the LORD, but to the priests the sons of Aaron, that are consecrated to burn incense: go out of the sanctuary; for you have trespassed; neither shall it be for your honor from the LORD God.

Numbers 16:5

And he spoke unto Korah and unto all his company, saying, Even tomorrow the LORD will show who are his, and who is holy; and will cause him to come near unto him: even him whom he has chosen will he cause to come near unto him.

Numbers 3:3

These are the names of the sons of Aaron, the priests who were anointed, whom he consecrated to minister in the priest's office.

Numbers 16:7

And put fire in them, and put incense in them before the LORD tomorrow: and it shall be that the man whom the LORD does choose, he shall be holy: you take too much upon you, you sons of Levi.

Numbers 16:10

And he has brought you near to him, and all your brethren the sons of Levi with you: and seek you the priesthood also?

Numbers 16:35

And there came out a fire from the LORD, and consumed the two hundred and fifty men that offered incense.

Numbers 16:46-48

And Moses said unto Aaron, Take a censer, and put fire therein from off the altar, and put on incense, and go quickly unto the congregation, and make an atonement for them: for there is wrath gone out from the LORD; the plague has begun.

Numbers 17:3-11

And you shall write Aaron's name upon the rod of Levi: for one rod shall be for the head of the house of their fathers.

Numbers 18:1-5

And the LORD said unto Aaron, You and your sons and your father's house with you shall bear the iniquity in connection with the sanctuary: and you and your sons with you shall bear the iniquity in connection with your priesthood.

Numbers 18:7

Therefore you and your sons with you shall keep your priest's office for everything at the altar, and within the veil; and you shall serve: I have given your priest's office unto you as a gift for service: and the stranger that comes near shall be put to death.

John 3:27

John answered and said, A man can receive nothing, except it be given him from heaven.

Leviticus 8:2

Take Aaron and his sons with him, and the garments, and the anointing oil, and a bullock for the sin offering, and two rams, and a basket of unleavened bread;

Treasury of Scripture Knowledge

Summary

And no man taketh this honour unto himself, but he that is called of God, as was Aaron.

Bible References

General references

Exodus 28:1
And take unto you Aaron your brother, and his sons with him, from among the children of Israel, that he may minister unto me in the priest's office, even Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.
Leviticus 8:2
Take Aaron and his sons with him, and the garments, and the anointing oil, and a bullock for the sin offering, and two rams, and a basket of unleavened bread;
Numbers 3:3
These are the names of the sons of Aaron, the priests who were anointed, whom he consecrated to minister in the priest's office.
Numbers 16:5
And he spoke unto Korah and unto all his company, saying, Even tomorrow the LORD will show who are his, and who is holy; and will cause him to come near unto him: even him whom he has chosen will he cause to come near unto him.
Numbers 17:3
And you shall write Aaron's name upon the rod of Levi: for one rod shall be for the head of the house of their fathers.
Numbers 18:1
And the LORD said unto Aaron, You and your sons and your father's house with you shall bear the iniquity in connection with the sanctuary: and you and your sons with you shall bear the iniquity in connection with your priesthood.
1 Chronicles 23:13
The sons of Amram; Aaron and Moses: and Aaron was separated, that he should sanctify the most holy things, he and his sons forever, to burn incense before the LORD, to minister unto him, and to give the blessing in his name forever.
2 Chronicles 26:18
And they withstood Uzziah the king, and said unto him, It belongs not unto you, Uzziah, to burn incense unto the LORD, but to the priests the sons of Aaron, that are consecrated to burn incense: go out of the sanctuary; for you have trespassed; neither shall it be for your honor from the LORD God.
John 3:27
John answered and said, A man can receive nothing, except it be given him from heaven.