AUV(i)
15 And this is even clearer if another priest like Melchizedek arises,
16 who was not appointed on the basis of human regulations governing one’s physical ancestry, but on the strength of One whose life never ends.
17 For it is declared [about Jesus in the Scriptures, Psa. 110:4], “You are a priest forever according to the order of Melchizedek.”
18 For on one hand, the previous command [i.e., the law of Moses] was set aside because it was weak and useless,
19 (since the law did not make anything [i.e., anyone] perfect), but on the other hand, there is the introduction of a better hope [which did bring perfection through Christ], by which we draw near to God.
20 And this was not done without the taking of an oath [by God],
21 (for [Levitical] priests were appointed without [God] taking [such] an oath, but Christ was appointed with an oath by God when He said to Him [Psa. 110:4], “The Lord made a vow and will not change His mind [when He said], ‘You are a priest forever’).”
22 So therefore, Jesus has become the guarantee of a better Agreement [between God and mankind].
23 And on one hand, many people were appointed to be [Levitical] priests because they were prevented by death from continuing [to serve]. [Note: The idea is that Levitical priests had to be constantly replaced].
24 But on the other hand, Jesus has a permanent priesthood because He lives forever.
25 So, He is also able to save completely those people who approach God through Him, since He lives forever to intercede [i.e., to plead to God] on their behalf.