15 And this becomes more plainly evident when another Priest arises Who bears the likeness of Melchizedek, [Ps. 110:4.]
16 Who has been constituted a Priest, not on the basis of a bodily legal requirement [an externally imposed command concerning His physical ancestry], but on the basis of the power of an endless and indestructible Life.
17 For it is witnessed of Him, You are a Priest forever after the order (with the rank) of Melchizedek. [Ps. 110:4.]
18 So a previous physical regulation and command is cancelled because of its weakness and ineffectiveness and uselessness–
19 For the Law never made anything perfect–but instead a better hope is introduced through which we [now] come close to God.
20 And it was not without the taking of an oath [that Christ was made Priest],
21 For those who formerly became priests received their office without its being confirmed by the taking of an oath by God, but this One was designated and addressed and saluted with an oath, The Lord has sworn and will not regret it or change His mind, You are a Priest forever according to the order of Melchizedek. [Ps. 110:4.]