Hebrews 5:4

And no one takes the honour to himself but as called by God, even as Aaron also.

Exodus 28:1

And thou shalt take thee Aaron thy brother, and his sons with him, from among the children of Israel, that he may serve me as priest Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.

Numbers 16:40

as a memorial to the children of Israel, that no stranger who is not of the seed of Aaron come near to burn incense before Jehovah, that he be not as Korah, and as his band, as Jehovah had said to him through Moses.

1 Chronicles 23:13

The sons of Amram: Aaron and Moses. And Aaron was separated, that he should be hallowed as most holy, he and his sons for ever, to offer before Jehovah, to do service to him, and to bless in his name for ever.

2 Chronicles 26:18

and they withstood Uzziah the king, and said to him, It is not for thee, Uzziah, to burn incense to Jehovah, but for the priests the sons of Aaron, that are consecrated to burn incense. Go out of the sanctuary; for thou hast transgressed; neither shall it be for thine honour from Jehovah Elohim.

Numbers 16:5

And he spoke to Korah and to all his band, saying, Even to-morrow will Jehovah make known who is his, and who is holy; and he will cause him to come near to him; and him whom he has chosen, him will he cause to come near to him.

Numbers 3:3

These are the names of the sons of Aaron, the anointed priests, who were consecrated to exercise the priesthood.

Numbers 16:7

and put fire therein, and lay incense thereon before Jehovah to-morrow; and it shall be that the man whom Jehovah doth choose, he shall be holy. It is enough, ye sons of Levi!

Numbers 16:10

that he has brought thee near, and all thy brethren the sons of Levi with thee; and seek ye now the priesthood also?

Numbers 16:35

And there came out a fire from Jehovah, and consumed the two hundred and fifty men that had presented incense.

Numbers 16:46-48

And Moses said to Aaron, Take the censer, and put fire thereon from off the altar, and lay on incense, and carry it quickly to the assembly, and make atonement for them; for there is wrath gone out from Jehovah: the plague is begun.

Numbers 17:3-11

And Aaron's name shalt thou write upon the staff of Levi; for one staff shall be for each head of their fathers' houses.

Numbers 18:1-5

And Jehovah said to Aaron, Thou and thy sons and thy father's house with thee shall bear the iniquity of the sanctuary; and thou and thy sons with thee shall bear the iniquity of your priesthood.

Numbers 18:7

But thou and thy sons with thee shall attend to your priesthood for all that concerneth the altar, and for that which is inside the veil; and ye shall perform the service: I give you your priesthood as a service of gift, and the stranger that cometh near shall be put to death.

John 3:27

John answered and said, A man can receive nothing unless it be given him out of heaven.

Leviticus 8:2

Take Aaron and his sons with him, and the garments and the anointing oil, and the bullock of the sin-offering, and the two rams, and the 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 thou shalt take thee Aaron thy brother, and his sons with him, from among the children of Israel, that he may serve me as priest 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 the bullock of the sin-offering, and the two rams, and the basket of unleavened bread;
Numbers 3:3
These are the names of the sons of Aaron, the anointed priests, who were consecrated to exercise the priesthood.
Numbers 16:5
And he spoke to Korah and to all his band, saying, Even to-morrow will Jehovah make known who is his, and who is holy; and he will cause him to come near to him; and him whom he has chosen, him will he cause to come near to him.
Numbers 17:3
And Aaron's name shalt thou write upon the staff of Levi; for one staff shall be for each head of their fathers' houses.
Numbers 18:1
And Jehovah said to Aaron, Thou and thy sons and thy father's house with thee shall bear the iniquity of the sanctuary; and thou and thy sons with thee shall bear the iniquity of your priesthood.
1 Chronicles 23:13
The sons of Amram: Aaron and Moses. And Aaron was separated, that he should be hallowed as most holy, he and his sons for ever, to offer before Jehovah, to do service to him, and to bless in his name for ever.
2 Chronicles 26:18
and they withstood Uzziah the king, and said to him, It is not for thee, Uzziah, to burn incense to Jehovah, but for the priests the sons of Aaron, that are consecrated to burn incense. Go out of the sanctuary; for thou hast transgressed; neither shall it be for thine honour from Jehovah Elohim.
John 3:27
John answered and said, A man can receive nothing unless it be given him out of heaven.