### Core Meaning & Semantic Range
The Greek word **aparábatos**, represented by `{{G531}}`, means **unchangeable**. It is derived from a negative particle and a word related to passing away, signifying something that is not passing away, untransferable, or perpetual. This specific term appears only **1 time** in the Bible, making its single usage highly significant.
### Biblical Occurrences & Contextual Analysis
The sole appearance of `{{G531}}` is in the context of describing a unique priestly office. In [[Hebrews 7:24]], the text states that "this man, because he continueth ever, hath an **unchangeable** priesthood." The word directly qualifies the nature of this priesthood `{{G2420}}`, linking its permanence to the fact that the one holding the office "continueth" `{{G3306}}` forever. This establishes a priesthood that does not end or get transferred to another.
### Related Words & Concepts
Several related words from its context clarify the meaning of `{{G531}}`:
* `{{G2420}}` **hierōsýnē** (priesthood): This is the direct subject described as **unchangeable**. It refers to the priestly office. The dossier notes its use in [[Hebrews 7:12]], where the "priesthood being changed" is discussed, providing a contrast to the permanent one.
* `{{G3306}}` **ménō** (to stay, remain, continue, endure): This word provides the reason for the priesthood's unchangeable nature. Because the priest "continueth" `{{G3306}}` ever, the office itself is permanent [[Hebrews 7:24]].
* `{{G2192}}` **échō** (to hold, have, keep): This verb establishes the possession of the priesthood. The verse states that this man "hath" `{{G2192}}` this unchangeable office, signifying a continuous and secure possession.
### Theological Significance
The theological weight of `{{G531}}` is focused on the finality and permanence of Christ's priestly ministry as described in the book of Hebrews.
* **A Perpetual Office:** The word establishes a **priesthood** `{{G2420}}` that is perpetual. Unlike the Levitical priesthood which changed hands, this one is described as lasting forever [[Hebrews 7:24]].
* **An Untransferable Role:** The definition of "untransferable" is key. It implies that this priestly office cannot be passed to a successor because the priest himself **continues** `{{G3306}}` in the role eternally.
* **Foundation in Endurance:** The unchangeable quality of the priesthood is not inherent to the office alone, but is founded upon the eternal endurance of the person who **holds** `{{G2192}}` it.
### Summary
In summary, `{{G531}}` is a precise and powerful term used once in Scripture to define a specific priesthood as permanent and non-transferable. Its meaning is inseparable from the eternal nature of the priest described in [[Hebrews 7:24]]. The word **aparábatos** encapsulates the theological concept of a final, unending priestly ministry that does not need to be succeeded, thereby making it uniquely **unchangeable**.
TRV