Hebrews 8:4

If, indeed, therefore, he had been on earth, he had not, in that case, even been a priest, since there are those who are offering the gifts, according to the law: -

Numbers 16:40

a memorial unto the sons of Israel, That no stranger, who is not of the seed of Aaron, shall draw near to offer incense before Yahweh, - lest he become like Korah and like his assembly, As spake Yahweh by the hand of Moses with regard thereto.

Numbers 17:12-13

Then spake the sons of Israel unto Moses saying: Lo! we have breathed our last - we are lost, we are, all, lost:

Numbers 18:5

So shall ye keep the charge of the sanctuary, and the charge of the altar, - that there no more be wrath against the sons of Israel.

2 Chronicles 26:18-19

and they took their stand against Uzziah the king, and said unto him-It is not, for thee, O Uzziah, to burn incense unto Yahweh, but, for the priests, the sons of Aaron, who are hallowed, to burn incense. Go forth out of the sanctuary, for thou hast acted unfaithfully, and, not to thee, for an honour, shall it be from Yahweh Elohim.

Hebrews 5:1

For, every high-priest who from among men is taken, on behalf of men, is appointed, as to the things pertaining unto God, that he may be offering bothgifts and sacrifices for sins, -

Hebrews 7:11-15

If indeed, therefore, there had been, a perfecting through means of the Levitical priesthood, - for, the people, thereon, have had based a code of laws, what further need, according to the rank of Melchizedek, for a different priest to be raised up, and, not according to the rank of Aaron, to be designated?

Hebrews 11:4

By faith, a fuller sacrifice, did Abel, offer unto God, than Cain, - through which, he received witness that he was righteous, there being a witnessing upon his gifts, by God; and, through it, though he died, he yet is speaking.

Treasury of Scripture Knowledge

Summary

For if he were on earth, he should not be a priest, seeing that there are priests that offer gifts according to the law:

Gifts

Bible References

He should

Hebrews 7:11
If indeed, therefore, there had been, a perfecting through means of the Levitical priesthood, - for, the people, thereon, have had based a code of laws, what further need, according to the rank of Melchizedek, for a different priest to be raised up, and, not according to the rank of Aaron, to be designated?
Numbers 16:40
a memorial unto the sons of Israel, That no stranger, who is not of the seed of Aaron, shall draw near to offer incense before Yahweh, - lest he become like Korah and like his assembly, As spake Yahweh by the hand of Moses with regard thereto.
Numbers 17:12
Then spake the sons of Israel unto Moses saying: Lo! we have breathed our last - we are lost, we are, all, lost:
Numbers 18:5
So shall ye keep the charge of the sanctuary, and the charge of the altar, - that there no more be wrath against the sons of Israel.
2 Chronicles 26:18
and they took their stand against Uzziah the king, and said unto him-It is not, for thee, O Uzziah, to burn incense unto Yahweh, but, for the priests, the sons of Aaron, who are hallowed, to burn incense. Go forth out of the sanctuary, for thou hast acted unfaithfully, and, not to thee, for an honour, shall it be from Yahweh Elohim.

Gifts

Hebrews 11:4
By faith, a fuller sacrifice, did Abel, offer unto God, than Cain, - through which, he received witness that he was righteous, there being a witnessing upon his gifts, by God; and, through it, though he died, he yet is speaking.