11 It was on the basis of the levitical priesthood that the Law was given to the people of Israel. Now, if the work of the levitical priests had been perfect, there would have been no need for a different kind of priest to appear, one who is in the priestly order of Melchizedek, not of Aaron.
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 forever, in the priestly order of Melchizedek.”