### Core Meaning & Semantic Range
The Greek word **tetrarchéō**, represented by `{{G5075}}`, is a verb defined as **to be a tetrarch**. This specific term appears **3 times** within a single, unique verse in the Bible. Its function is to describe the act of holding the office and authority of a tetrarch over a specific territory.
### Biblical Occurrences & Contextual Analysis
The sole use of `{{G5075}}` is found in [[Luke 3:1]], where it establishes the precise political landscape at the beginning of John the Baptist's ministry. The verse meticulously lists the regional rulers, using the word three times to clarify the divided authority: "Herod **being tetrarch** of Galilee, and his brother Philip **tetrarch** of Ituraea and of the region of Trachonitis, and Lysanias the **tetrarch** of Abilene". This repetition emphasizes the fragmented nature of governance in the area during that period.
### Related Words & Concepts
Several related words provide a broader context for the systems of rule and authority mentioned in scripture:
* `{{G2264}}` **Hērṓdēs** (heroic; Herod, the name of four Jewish kings): This is the name of the ruler identified as "being tetrarch" `{{G5075}}` over Galilee in [[Luke 3:1]]. The name Herod appears in many contexts, often associated with kingship or regional rule.
* `{{G2230}}` **hēgemoneúō** (to act as ruler:--be governor): This term for ruling appears in the same verse as `{{G5075}}`, describing Pontius Pilate "being governor" of Judaea [[Luke 3:1]], illustrating a different but concurrent form of Roman-appointed authority.
* `{{G2231}}` **hēgemonía** (government, i.e. (in time) official term:--reign): This word establishes the overarching imperial authority under which the tetrarchs served, as seen in the phrase "the fifteenth year of the **reign** of Tiberius Caesar" [[Luke 3:1]].
### Theological Significance
The significance of `{{G5075}}` is primarily historical and structural, grounding the biblical narrative in a verifiable political reality.
* **Historical Precision:** The use of this verb to identify Herod, Philip, and Lysanias as tetrarchs serves to date the events of the gospel with great specificity, anchoring them to the fifteenth year of Tiberius Caesar's reign [[Luke 3:1]].
* **Political Context:** The term clarifies the system of divided power in the region. By detailing who was "being tetrarch" over distinct territories, the text paints a picture of a land partitioned under multiple local rulers, all subordinate to Rome.
* **Narrative Framework:** Identifying these rulers establishes the political authorities that figures like Jesus and John the Baptist would interact with. For instance, it is "Herod the tetrarch" who is specifically mentioned in relation to Manaen in [[Acts 13:1]].
### Summary
In summary, `{{G5075}}` is a precise and rare term whose importance lies in its ability to establish a clear historical and political setting. Though confined to a single verse, its repeated use in [[Luke 3:1]] is critical for understanding the structure of power in Judea and the surrounding regions. It functions alongside other words for governance to create a detailed and accurate backdrop for the events of the New Testament.