Biblion Bible Commentary
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A Change of the Law
Hebrews 7:11-19
11 Now if perfection was through the Levitical priesthood (for under it the people have received the law), what further need was there for another priest to arise after the order of Melchizedek, and not be called after the order of Aaron? · WEB
The existence of a second priesthood proves the first could not finish its work, and a changed priesthood carries a changed law with it.
Now if perfection was through the Levitical priesthood... what further need was there for another priest to arise after the order of Melchizedek, and not be called after the order of Aaron?
The argument has the same shape as the rest argument in chapter 4 Hebrews 4:8: if the first arrangement had finished the job, the second would never have been announced. Psalm 110 promises a priest from a different order — spoken centuries after Aaron's line was established and functioning. The announcement itself is the evidence. A working system does not get a successor appointed over it.
Verse 12 draws the consequence that makes this the hinge of the whole letter: for the priesthood being changed, there is of necessity a change made also in the law.
The law in view is the one just named — the law of priestly descent, under which the people received the law of the sanctuary's operation Hebrews 7:11. Priesthood and its regulating law are one package; move the office to another order and the statute that tied it to Levi's line has been superseded by the same word that moved it.
And the disqualifying fact is stated openly rather than managed: our Lord has sprung out of Judah, about which tribe Moses spoke nothing concerning priesthood. Under the old rule, Jesus cannot be a priest at all — the writer concedes it, because the concession is the argument. His priesthood must therefore rest on something other than that rule.
Verse 16 names what it rests on, in one of the book's great phrases: not after the law of a fleshly commandment, but after the power of an endless life.
Two kinds of qualification. One checks ancestry — a matter of flesh, verifiable in a register Ezra 2:62. The other is a life death could not hold, which is not a credential that can be filed but also not one that can expire. The psalm's word forever was always going to require the second kind.
Verses 18 and 19 state the outcome with both edges: the foregoing commandment is annulled because of its weakness and uselessness — for the law made nothing perfect — and what replaces it is a better hope, through which we draw near to God.
The verdict on the law is about capacity, not quality: it could regulate approach, but could not accomplish it. The measure of the new arrangement is in the last clause — nearness. That was always the point of having priests at all.
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