Hebrews 8:4
Now if he were on earth, he would not be a priest at all, since there are priests who offer gifts according to the law.
Numbers 16:40
to be a reminder to the people of Israel, so that no outsider, who is not of the descendants of Aaron, should draw near to burn incense before the LORD, lest he become like Korah and his company--as the LORD said to him through Moses.
Numbers 17:12-13
And the people of Israel said to Moses, "Behold, we perish, we are undone, we are all undone.
Numbers 18:5
And you shall keep guard over the sanctuary and over the altar, that there may never again be wrath on the people of Israel.
2 Chronicles 26:18-19
and they withstood King Uzziah and said to him, "It is not for you, Uzziah, to burn incense to the LORD, but for the priests, the sons of Aaron, who are consecrated to burn incense. Go out of the sanctuary, for you have done wrong, and it will bring you no honor from the LORD God."
Hebrews 5:1
For every high priest chosen from among men is appointed to act on behalf of men in relation to God, to offer gifts and sacrifices for sins.
Hebrews 7:11-15
Now if perfection had been attainable through the Levitical priesthood (for under it the people received the law), what further need would there have been for another priest to arise after the order of Melchizedek, rather than one named after the order of Aaron?
Hebrews 11:4
By faith Abel offered to God a more acceptable sacrifice than Cain, through which he was commended as righteous, God commending him by accepting his gifts. And through his faith, though he died, he still speaks.