Hebrews 7:2, 21

and Abraham gave him a tenth of all [the spoil]. He is, first of all, by the translation of his name, king of righteousness, and then he is also king of Salem, which means king of peace.

(for those Levites who formerly became priests [received their office] without [its being confirmed by the taking of] an oath, but this One [was designated] with an oath through the One who said to Him, “THE LORD HAS SWORN AND WILL NOT CHANGE HIS MIND or REGRET IT, ‘YOU (Christ) ARE A PRIEST FOREVER’ ”). [Ps 110:4]