from ὀκτώ and ἡμέρα; an eight-day old person or act:--the eighth day.
Transliteration:oktaḗmeros
Pronunciation:ok-tah-ay'-mer-os
Detailed Word Study
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### Core Meaning & Semantic Range
The Greek term ὀκταήμερος (oktaḗmeros, `{{G3637}}`) is a compound adjective derived from ὀκτώ (oktō, "eight") and ἡμέρα (hēméra, "day"). Its most direct and literal meaning is "eight-day old" or "on the eighth day." In the biblical context, its semantic range is quite narrow and specifically refers to the prescribed timing for the ritual of circumcision. It does not carry broader temporal or qualitative meanings beyond this precise age or day designation for an individual or an event. The term unequivocally points to a specific point in time relative to birth, rooted in ancient Israelite covenantal practice.
### Biblical Occurrences & Contextual Analysis
The term ὀκταήμερος (oktaḗmeros, `{{G3637}}`) appears twice in the New Testament, both instances directly referencing the practice of circumcision on the eighth day, a command central to the Abrahamic and Mosaic covenants.
1. **[[Luke 1:59]]**: "And it came to pass, on the eighth day, that they came to circumcise the child; and they were calling him by the name of his father, Zacharias." Here, the word describes the day on which John the Baptist was circumcised. This passage highlights the adherence of Zechariah and Elizabeth to the Mosaic Law, emphasizing the continuity of covenantal obedience even as the New Covenant era was dawning. John's circumcision on the eighth day, as commanded in [[Leviticus 12:3]] (cf. [[Genesis 17:12]]), underscores his birth within the framework of the Old Covenant and his role as a bridge figure preparing the way for the Messiah.
2. **[[Philippians 3:5]]**: "circumcised on the eighth day, of the nation of Israel, of the tribe of Benjamin, a Hebrew of Hebrews; as to the Law, a Pharisee." In this powerful autobiographical statement, Paul lists his credentials, which he later counts as "loss for the sake of Christ." His declaration of being "circumcised on the eighth day" is a definitive assertion of his impeccable Jewish lineage and strict adherence to the Law from birth. For Paul, this was not merely a cultural practice but a sign of his full participation in the covenant people of God under the Law. The use of ὀκταήμερος here underscores the precision and seriousness with which this covenantal sign was observed, forming a significant part of his pre-conversion identity and righteousness according to the Law.
Both occurrences demonstrate the term's specific function: to denote the precise, divinely ordained timing of circumcision, a critical marker of identity within the covenant community.
### Related Words & Concepts
The study of ὀκταήμερος (oktaḗmeros, `{{G3637}}`) naturally leads to several related biblical words and theological concepts:
* **Circumcision (περιτομή, peritomē, `{{G4061}}`)**: This is the primary ritual with which ὀκταήμερος is associated. The act itself, its significance as a sign of the covenant, and its theological reinterpretation in the New Testament are inseparable from the timing specified by ὀκταήμερος.
* **Covenant (διαθήκη, diathēkē, `{{G1242}}`)**: Specifically, the Abrahamic Covenant ([[Genesis 17:9-14]]) and the Mosaic Covenant, both of which mandated circumcision as a sign of inclusion and obedience. The "eighth day" was not arbitrary but divinely appointed.
* **Law (νόμος, nomos, `{{G3551}}`)**: The command for circumcision on the eighth day is a part of the Mosaic Law ([[Leviticus 12:3]]). Paul's reference in Philippians highlights his obedience to the Law.
* **Eight (ὀκτώ, oktō, `{{G3638}}` / שְׁמוֹנָה, shəmonâh, `{{H8083}}`)**: The number eight itself holds symbolic significance in biblical thought, often associated with new beginnings, resurrection, and new creation (e.g., the eighth day as the first day of a new week, Noah and seven others saved in the ark). While not explicitly stated for circumcision, this underlying numerological association adds a layer of potential depth.
* **Day (ἡμέρα, hēméra, `{{G2250}}` / יוֹם, yôm, `{{H3117}}`)**: The basic unit of time from which ὀκταήμερος is formed, emphasizing the precise temporal requirement.
* **Righteousness by Faith vs. Works**: Paul's discussion in Philippians 3, where he mentions being "circumcised on the eighth day," directly contrasts his former reliance on external legalistic adherence with the new righteousness found only through faith in Christ ([[Philippians 3:9]]). This highlights a profound theological shift.
### Theological Significance
The theological significance of ὀκταήμερος (oktaḗmeros, `{{G3637}}`) is deeply intertwined with the biblical narrative of covenant, identity, and salvation.
1. **Covenantal Identity and Obedience**: The command for circumcision on the eighth day ([[Genesis 17:12]], [[Leviticus 12:3]]) was a foundational sign of the Abrahamic Covenant, marking male Israelites as belonging to God's chosen people. It was a physical sign of an exclusive relationship with Yahweh. The specific timing on the eighth day, when the infant was considered strong enough, underscored the divine precision and the seriousness of the covenant. For John the Baptist, it signified his rightful place within the lineage preparing for the Messiah. For Paul, it was the ultimate proof of his impeccable Jewish credentials, demonstrating his full adherence to the Law and his identity as an Israelite.
2. **Transition from Old to New Covenant**: Paul's use of "circumcised on the eighth day" in [[Philippians 3:5]] is crucial for understanding the transition from the Old Covenant to the New. While it was once the paramount sign of covenant membership, Paul now counts it as "loss" compared to the surpassing worth of knowing Christ. This signifies a shift from an outward, physical sign of belonging to an internal, spiritual reality. The "circumcision of the heart" ([[Romans 2:29]], [[Colossians 2:11-12]]) becomes the true mark of God's people in the New Covenant, accomplished not by human hands but by the Spirit through faith in Christ.
3. **Symbolism of New Creation/Resurrection**: While not explicitly stated in the biblical texts themselves, the "eighth day" can carry a subtle theological resonance with new beginnings. In Jewish thought, the eighth day is the first day of a new week, pointing to a new cycle. The resurrection of Jesus occurred on the first day of the week (the "eighth day" from the previous Sabbath), inaugurating a new creation and a new humanity. In this light, the physical circumcision on the eighth day under the Old Covenant might be seen as a foreshadowing or type of the spiritual new birth and new identity found in Christ, which truly marks one as part of God's renewed covenant community.
### Summary
The term ὀκταήμερος (oktaḗmeros, `{{G3637}}`) precisely denotes an "eight-day old" person or event, specifically referring to the timing of circumcision as mandated by the Mosaic Law. Its two occurrences in the New Testament, in [[Luke 1:59]] regarding John the Baptist and in [[Philippians 3:5]] concerning the Apostle Paul, underscore its significance as a definitive marker of covenantal identity and obedience within ancient Israel. Theologically, ὀκtaήμερος highlights the continuity of divine commands, the meticulous adherence to the Law by figures like John and pre-conversion Paul, and ultimately serves as a backdrop against which Paul articulates the profound shift from reliance on external, physical signs of righteousness to the internal, spiritual reality of justification by faith in Christ. It thus stands as a poignant reminder of both the Old Covenant's demands and the New Covenant's transformative power, where the true "circumcision" is of the heart.
TRV