Hebrews 8:4
If then indeed he were upon earth, he would not even be a priest, there being those who offer the gifts according to the law,
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.
Numbers 17:12-13
And the children of Israel spoke to Moses, saying, Lo, we expire, we perish, we all perish.
Numbers 18:5
And ye shall keep the charge of the sanctuary, and the charge of the altar; that there come no wrath any more upon the children of Israel.
2 Chronicles 26:18-19
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.
Hebrews 5:1
For every high priest taken from amongst men is established for men in things relating to God, that he may offer both gifts and sacrifices for sins;
Hebrews 7:11-15
If indeed then perfection were by the Levitical priesthood, for the people had their law given to them in connexion with it, what need was there still that a different priest should arise according to the order of Melchisedec, and not be named after the order of Aaron?
Hebrews 11:4
By faith Abel offered to God a more excellent sacrifice than Cain, by which he obtained testimony of being righteous, God bearing testimony to his gifts, and by it, having died, he yet speaks.