Hebrews 7:8

7:8 and in one case tithes are received by mortal men, while in the other by him who is affirmed to be alive.

Hebrews 7:16

7:16 who has become a priest not by a legal regulation about physical descent but by the power of an indestructible life.

Hebrews 7:24

7:24 but he holds his priesthood permanently since he lives forever.