Hebrews 5:4
And no man who is not given authority by God, as Aaron was, takes this honour for himself.
Exodus 28:1
Now let Aaron your brother, and his sons with him, come near from among the children of Israel, so that they may be my priests, even Aaron, and Nadab, Abihu, Eleazar, and Ithamar, his sons.
Numbers 16:40
To be a sign, kept in memory for ever by the children of Israel, that no man who is not of the seed of Aaron has the right of burning spices before the Lord, so that he may not be like Korah and his band: as the Lord said to him by the mouth of Moses.
1 Chronicles 23:13
The sons of Amram: Aaron and Moses; and Aaron was made separate and holy, he and his sons for ever, for the care of the most holy things and the burning of offerings before the Lord, to do his work and give blessings in his name for ever.
2 Chronicles 26:18
And they made protests to Uzziah the king, and said to him, The burning of perfumes, Uzziah, is not your business but that of the priests, the sons of Aaron, who have been made holy for this work: go out of the holy place, for you have done wrong, and it will not be to your honour before God.
Numbers 16:5
And he said to Korah and his band, In the morning the Lord will make clear who are his, and who is holy, and who may come near him: the man of his selection will be caused to come near him.
Numbers 3:3
These are the names of the sons of Aaron, the priests, on whom the holy oil was put, who were marked out as priests.
Numbers 16:7
And put spices on the fire in them before the Lord tomorrow; then the man marked out by the Lord will be holy: you take overmuch on yourselves, you sons of Levi.
Numbers 16:10
Letting you, and all your brothers the sons of Levi, come near to him? and would you now be priests?
Numbers 16:35
Then fire came out from the Lord, burning up the two hundred and fifty men who were offering the perfume.
Numbers 16:46-48
And Moses said to Aaron, Take your vessel and put in it fire from the altar, and sweet spices, and take it quickly into the meeting of the people, and make them free from sin: for wrath has gone out from the Lord, and the disease is starting.
Numbers 17:3-11
And let Aaron's name be placed on the rod of Levi: for there is to be one rod for the head of every family.
Numbers 18:1-5
And the Lord said to Aaron, You and your sons and your father's family are to be responsible for all wrongdoing in relation to the holy place: and you and your sons are to be responsible for the errors which come about in your work as priests.
Numbers 18:7
And you and your sons with you are to be responsible as priests for the altar and everything on it, and everything inside the veil; you are to do the work of priests; I have given you your position as priests; and any other man who comes near will be put to death.
John 3:27
And this was John's answer: A man is unable to have anything if it is not given to him from heaven.
Leviticus 8:2
Take Aaron, and his sons with him, and the robes and the holy oil and the ox of the sin-offering and the two male sheep and the basket of unleavened bread;