Hebrews 7:11

If indeed therefore perfection was through the Levitical priesthood (for under it the people had received the law), what further need is there for another priest to arise according to the order of Melchizedek, and not be designated

Hebrews 8:7

For if that first one was faultless, no place would have been sought for a second.

Galatians 2:21

I do not disregard the grace of God, for if righteousness is through law, then Christ died in vain.

Hebrews 5:6

(And just as he says in another, Thou are a priest into the age according to the order of Melchizedek.)

Hebrews 7:17-19

For he testifies, Thou are a priest into the age according to the order of Melchizedek.

Galatians 4:3

And so when we were children, we were in bondage under the rudiments of the world.

Galatians 4:9

but now knowing God, but rather being known by God, how is it ye turn again to the weak and destitute elements to which ye desire again to be in bondage anew?

Colossians 2:10-17

And ye are men who have been made full in him, who is the head of every principal office and position of authority.

Hebrews 5:10

having been designated by God a high priest according to the order of Melchizedek.

Hebrews 6:20

where the forerunner, Jesus, entered for us, having become a high priest into the age according to the order of Melchizedek.

Hebrews 7:15

And it is still far more evident, if according to the likeness of Melchizedek, there arises another priest,

Hebrews 7:21

but he with an oath, because of him who says to him, The Lord swore and will not change his mind, Thou are a priest into the age according to the order of Melchizedek.

Hebrews 8:10-13

Because this is the covenant that I will ordain with the house of Israel after those days, says Lord, giving my laws into their mind, and I will write them on their hearts. And I will be to them for a God, and they will be to me fo

Hebrews 10:1-4

For the law having a shadow of the good things that are coming, not the same substance of the events, with the same sacrifices that are offered continually each year, they are never able to fully perfect those who are approaching.

Treasury of Scripture Knowledge

Summary

If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise after the order of Melchisedec, and not be called after the order of Aaron?

General references

Bible References

Perfection

Hebrews 7:18
For indeed there becomes an annulment of a preceding commandment because of its weakness and uselessness
Hebrews 8:7
For if that first one was faultless, no place would have been sought for a second.
Hebrews 10:1
For the law having a shadow of the good things that are coming, not the same substance of the events, with the same sacrifices that are offered continually each year, they are never able to fully perfect those who are approaching.
Galatians 2:21
I do not disregard the grace of God, for if righteousness is through law, then Christ died in vain.
Galatians 4:3
And so when we were children, we were in bondage under the rudiments of the world.
Colossians 2:10
And ye are men who have been made full in him, who is the head of every principal office and position of authority.

What

Hebrews 7:26
For such a high priest is fitting for us, devout, innocent, undefiled, separated from sinners, and having become higher than the heavens.

Another

Hebrews 7:15
And it is still far more evident, if according to the likeness of Melchizedek, there arises another priest,
Hebrews 5:6
(And just as he says in another, Thou are a priest into the age according to the order of Melchizedek.)
Hebrews 6:20
where the forerunner, Jesus, entered for us, having become a high priest into the age according to the order of Melchizedek.

General references

Numbers 20:26
and strip Aaron of his garments, and put them upon Eleazar his son. And Aaron shall be gathered, and shall die there.