### Core Meaning & Semantic Range
The Greek word **anepsiós**, represented by `{{G431}}`, is a specific term for a relative, defined as a cousin or, more precisely, a sister's son. Its etymology suggests kinship, deriving from a particle of union and a word for a brood. This term is exceptionally rare, appearing only **1 time** in **1 unique verse** in the entire Bible.
### Biblical Occurrences & Contextual Analysis
The sole appearance of `{{G431}}` is in [[Colossians 4:10]], within a list of personal greetings. The verse states, "Aristarchus my fellowprisoner saluteth you, and Marcus, **sister's son** to Barnabas." This usage precisely defines the familial relationship between two important figures in the early church: Marcus, the author of the Gospel, and his uncle, Barnabas. The context is a personal commendation from Paul to the church in Colossae, instructing them to receive Marcus if he visits.
### Related Words & Concepts
Several related words and individuals are linked to the context of `{{G431}}`:
* `{{G3138}}` **Márkos**: Defined as "Marcus, a Christian," he is the person identified as the `anepsiós`. He is noted elsewhere as a companion who traveled with Barnabas [[Acts 15:39]] and was considered profitable for ministry by Paul [[2 Timothy 4:11]].
* `{{G921}}` **Barnábas**: Meaning "son of Nabas (i.e. prophecy); Barnabas, an Israelite," he is the uncle in this relationship. He was a prominent leader and missionary partner to Paul in the early church [[Acts 13:2]].
* `{{G708}}` **Arístarchos**: An individual defined as "best ruling; Aristarchus, a Macedonian." He is mentioned in the same greeting as a "fellowprisoner" with Paul, highlighting the difficult circumstances of their ministry [[Colossians 4:10]].
* `{{G4869}}` **synaichmálōtos**: This term means "a co-captive" and is used to describe Aristarchus [[Colossians 4:10]]. It underscores the context of imprisonment from which Paul is writing.
### Theological Significance
While not a major theological term, the use of `{{G431}}` carries significance for understanding the early church community.
* **Kinship in Ministry:** The specific mention of a family tie between Marcus and Barnabas shows that familial relationships were present and acknowledged within the network of Christian ministers [[Colossians 4:10]].
* **Commendation and Trust:** Paul leverages this known family connection as part of his instruction for the Colossians to "receive him." The relationship with the respected Barnabas would have served as a strong endorsement for Marcus.
* **Personal Connection:** The use of `{{G431}}` offers a glimpse into the personal lives and social fabric of the first-century believers. It grounds the apostolic letters in real-world human relationships.
### Summary
In summary, `{{G431}}` is a precise and rare biblical term for a kinsman. Its single occurrence is not in a doctrinal teaching but in the personal closing of an epistle, where it serves to clarify the relationship between Marcus and Barnabas. This small detail enriches our understanding of the interconnected community of the early church, demonstrating that family bonds and personal networks played a vital role in supporting the work of the ministry.