from (bodily vigor; probably akin to the base of ἵστημι); to strengthen, i.e. (figuratively) confirm (in spiritual knowledge and power):--strengthen.
Transliteration:sthenóō
Pronunciation:sthen-o'-o
Detailed Word Study
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### Core Meaning & Semantic Range
The Greek verb σθενόω (`{{G4599}}`) is derived from a root suggesting "bodily vigor" or "strength," and is possibly akin to ἵστημι (`{{G2476}}`), "to stand." This etymological connection points to an underlying sense of stability, firmness, and robust capacity. In its primary usage, σθενόω means "to strengthen" or "to make strong." However, its New Testament occurrences exclusively employ a figurative sense, emphasizing the spiritual realm. The base definition provided specifies this figurative application: "to strengthen, i.e. (figuratively) confirm (in spiritual knowledge and power)." Thus, the semantic range of σθενόω in the biblical context is narrowed to the imparting of inner fortitude, spiritual resilience, and divine enablement for believers. It speaks not of physical might, but of an inward spiritual invigoration that allows one to stand firm and persevere.
### Biblical Occurrences & Contextual Analysis
The verb σθενόω (`{{G4599}}`) appears only twice in the New Testament, both times in significant theological contexts, underscoring its profound meaning:
1. **[[Ephesians 3:16]]**: "that He would grant you, according to the riches of His glory, to be strengthened with power through His Spirit in the inner man." Here, Paul prays for the Ephesian believers to be σθενόωed. The strengthening is explicitly attributed to God's gracious grant ("He would grant you"), rooted in the "riches of His glory," and mediated "through His Spirit." Crucially, the object of this strengthening is the "inner man," which refers to the spiritual core of a person, distinct from the physical body. The accompanying phrase "with power" (δύναμις, `{{G1411}}`) further clarifies that this is an impartation of divine ability and spiritual might, enabling believers to grasp the immensity of Christ's love and be filled with the fullness of God (vv. 17-19). This strengthening is essential for spiritual comprehension and growth.
2. **[[1 Peter 5:10]]**: "But may the God of all grace, who called us to His eternal glory in Christ, after you have suffered a little while, perfect, confirm, strengthen, and establish you." In this powerful benediction, Peter invokes God's comprehensive work in believers who have endured suffering. Σθενόω is one of four verbs in a series, each contributing to the description of God's restorative and preserving action: καταρτίζω (`{{G2675}}`, "perfect/restore"), στηρίζω (`{{G4741}}`, "confirm/establish"), σθενόω ("strengthen"), and θεμελιόω (`{{G2311}}`, "establish/ground"). Within this quartet, σθενόω specifically denotes the impartation of renewed vigor and inner fortitude, enabling believers to stand resiliently after trials. It speaks to the divine provision of spiritual energy and resolve necessary for perseverance and stability in faith, leading ultimately to eternal glory.
In both instances, the strengthening is a divine act, not a human achievement, and its purpose is spiritual endurance, stability, and growth in the face of challenges or for deeper spiritual understanding.
### Related Words & Concepts
Σθενόω (`{{G4599}}`) exists within a rich semantic field of words related to strength, power, and stability in the New Testament.
* **Synonyms and Closely Related Verbs:**
* δυναμόω (`{{G1412}}`): "to strengthen," often emphasizing the impartation of δύναμις (`{{G1411}}`, power).
* ἐνδυναμόω (`{{G1743}}`): "to empower," "to strengthen within," frequently used by Paul to describe being strengthened by the Lord (e.g., [[Philippians 4:13]], [[2 Timothy 4:17]]).
* κραταιόω (`{{G2901}}`): "to be made strong," "to grow strong," often implying an increase in power or strength (e.g., [[Luke 1:80]], [[Ephesians 3:16]] where it is used in parallel to σθενόω in some manuscripts, though σθενόω is the preferred reading).
* στηρίζω (`{{G4741}}`): "to make firm," "to establish," "to confirm." This verb appears alongside σθενόω in [[1 Peter 5:10]] and shares a strong conceptual link to spiritual stability.
* βεβαιόω (`{{G950}}`): "to confirm," "to make firm," "to establish."
* θεμελιόω (`{{G2311}}`): "to lay a foundation," "to establish firmly," also found alongside σθενόω in [[1 Peter 5:10]].
* **Antonyms/Opposite Concepts:** Weakness (ἀσθένεια, `{{G769}}`), spiritual feebleness, instability, wavering, and being easily shaken.
* **Key Concepts:** Inner man, spiritual power, divine enablement, endurance, steadfastness, confirmation, establishment, perseverance through trials. The underlying concept of "standing firm" (from ἵστημι, `{{G2476}}`) is also integral to understanding the spiritual stability σθενόω conveys.
### Theological Significance
The theological significance of σθενόω (`{{G4599}}`) is profound, highlighting several key aspects of Christian life and divine-human interaction:
1. **Divine Source of Strength:** Both biblical occurrences unequivocally present God as the ultimate source of this strengthening. It is "He who would grant" [[Ephesians 3:16]] and "the God of all grace" [[1 Peter 5:10]] who performs this action. This underscores the believer's absolute dependence on divine power for spiritual vitality and endurance. It is a gift, not an earned status.
2. **Spiritual Nature of Strengthening:** The focus on the "inner man" [[Ephesians 3:16]] confirms that σθενόω is not about physical prowess or worldly influence. Instead, it concerns the fortification of one's spirit, mind, and will, enabling spiritual perception, resilience, and adherence to truth. This inner strength is crucial for navigating the challenges of faith.
3. **Purposeful Empowerment:** The strengthening imparted by σθενόω serves specific, redemptive purposes. In Ephesians, it empowers believers to grasp the immeasurable love of Christ and be filled with the fullness of God, leading to a life that reflects His glory. In 1 Peter, it enables believers to persevere through suffering, confirming their faith and establishing them firmly for their ultimate inheritance in glory. It is strength *for* enduring, *for* understanding, and *for* living out one's calling.
4. **Assurance and Stability in Christ:** The inclusion of σθενόω alongside verbs like "confirm" and "establish" in [[1 Peter 5:10]] emphasizes God's commitment to provide security and stability for His people. Despite suffering, believers are assured that God will not only restore them but also fortify them to stand firm. This speaks to the believer's secure standing in Christ, maintained by divine power.
5. **Holistic Spiritual Development:** While focused on the inner being, the strengthening conveyed by σθενόω has implications for the believer's entire life. A fortified "inner man" is better equipped to respond to external pressures, live righteously, and grow in Christlikeness, demonstrating the transformative power of God's Spirit.
### Summary
The Greek verb σθενόω (`{{G4599}}`) encapsulates the profound theological truth of divine spiritual empowerment. Though rooted in a concept of physical vigor, its exclusive New Testament application is figurative, describing God's gracious act of strengthening the "inner man" of believers. Occurring only in [[Ephesians 3:16]] and [[1 Peter 5:10]], σθενόω consistently points to the impartation of spiritual power, inner fortitude, and divine confirmation. This strengthening is not self-generated but is a gift from God, mediated by His Spirit, enabling believers to comprehend divine truth, endure suffering, and stand firm in their faith. It highlights the believer's absolute reliance on God's power for spiritual vitality, perseverance, and ultimate establishment in His eternal glory.
TRV