G2420–ἱερωσύνη–hierōsunē

If indeed, then, perfection were through the Levitical priesthood -- for the people under it had received law -- what further need, according to the order of Melchisedek, for another priest to arise, and not to be called according to the order of Aaron?

ἱερωσύνης hi'erōsunēs “priesthood”

for the priesthood being changed, of necessity also, of the law a change doth come,

ἱερωσύνης hi'erōsunēs “priesthood”

and he, because of his remaining -- to the age, hath the priesthood not transient,

ἱερωσύνην· hi'erōsunēn “priesthood;”