Hierōsunē ἱερωσύνη

Hierōsunē (Greek ἱερωσύνη, Strong's G2420) is a Greek feminine noun meaning “priesthood”. It occurs 3 times in 3 verses of the New Testament.

Definition

From the STEPBible Brief Lexicon of Greek (based on Abbott-Smith), STEPBible.org, CC BY 4.0.

Translated as

Verses

Every verse with Hierōsunē, with the English words that translate it highlighted (KJV or BSB; other translations show the KJV here).

Hebrews

• Hebrews 7:11
  If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise after the order of Melchisedec, and not be called after the order of Aaron?Now if perfection could have been attained through the Levitical priesthood (for on this basis the people received the law), why was there still need for another priest to appear—one in the order of Melchizedek and not in the order of Aaron?
• Hebrews 7:12
  For the priesthood being changed, there is made of necessity a change also of the law.For when the priesthood is changed, the law must be changed as well.
• Hebrews 7:24
  But this man, because he continueth ever, hath an unchangeable priesthood.But because Jesus lives forever, He has a permanent priesthood.

Notes

1. Definition and verse list from STEPBible's tagged Hebrew Old Testament (TAHOT) and Greek New Testament (TAGNT) and Brief Lexicons, STEPBible.org, CC BY 4.0.
2. English renderings from the public-domain KJV with Strong's numbers (eBible.org) and the Berean Standard Bible interlinear (public domain).