12 For when the priesthood is changed, there also has to be a change in the law.
13 And our Lord, of whom these things are said, belonged to a different tribe, and no member of his tribe ever served as a priest.
14 It is well known that he was born a member of the tribe of Judah; and Moses did not mention this tribe when he spoke of priests.
15 The matter becomes even plainer; a different priest has appeared, who is like Melchizedek.
16 He was made a priest, not by human rules and regulations, but through the power of a life which has no end.
17 For the scripture says, “You will be a priest for ever, in the priestly order of Melchizedek.”
18 The old rule, then, is set aside, because it was weak and useless.