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G4599

σθενόω

sthenóō /sthen-o'-o/ Ask about this word
from (bodily vigor; probably akin to the base of ἵστημι)
to strengthen, i.e. (figuratively) confirm (in spiritual knowledge and power)
strengthen.

Word Study

In depth

A plain-language study of sthenóō — the range of meaning it carries, how Scripture actually uses it, and where it points. Written for readers who don’t know the original language.

Core Meaning & Semantic Range

The Greek word sthenóō, represented by G4599, means to strengthen. Derived from a word indicating bodily vigor, its biblical usage is figurative, referring to the act of confirming someone in spiritual knowledge and power. This specific term is exceptionally rare, appearing only 1 time in 1 unique verse in the entire Bible.

Biblical Occurrences & Contextual Analysis

The sole appearance of G4599 is in 1 Peter 5:10, where it is part of a powerful promise from God. After believers have "suffered a while," the passage states that the God of all grace will perform a sequence of actions: "make you perfect, stablish, strengthen, settle you." In this context, to strengthen is a divine act of imparting spiritual power and confirming the believer, occurring as part of a larger process of restoration and maturation.

Related Words & Concepts

Several related words appear alongside G4599 in its only scriptural context, providing a fuller picture of this divine work:

  • G2675 katartízō: This word means "to complete thoroughly, i.e. repair (literally or figuratively) or adjust." In 1 Peter 5:10, it is translated as "make you perfect," and it is also used for the act of restoring a person who has been overtaken in a fault Galatians 6:1.
  • G4741 stērízō: Defined as "to set fast... or (figuratively) to confirm," this term appears as "stablish" in 1 Peter 5:10. It is similarly used in the command to "stablish your hearts" for the Lord's coming James 5:8.
  • G2311 themelióō: This term means "to lay a basis for... ground, settle." It appears as "settle" in 1 Peter 5:10 and is used elsewhere to describe a house "founded upon a rock" Matthew 7:25 or believers being "grounded in love" Ephesians 3:17.

Theological Significance

The theological significance of G4599 is concentrated in its singular use, highlighting God's direct role in fortifying His people.

  • Empowerment Through Trial: The promise to strengthen is given specifically to those who "have suffered a while" 1 Peter 5:10, indicating that divine strengthening is a key component of God's response to the trials of a believer.
  • A Component of Spiritual Completion: The word does not stand alone. It is part of a four-fold process that includes being made perfect G2675, stablished G4741, and settled G2311, suggesting that true spiritual strength is intrinsically linked to completeness, stability, and a firm foundation.
  • Confirmation in Power: As its base definition suggests, to strengthen is to "confirm (in spiritual knowledge and power)." This action is performed by "the God of all grace," who has called believers to eternal glory through Christ Jesus 1 Peter 5:10.

Summary

In summary, G4599 is a focused and potent term for divine strengthening. Its single appearance in 1 Peter 5:10, nestled among other words of restoration, defines it as a crucial aspect of God's work in a believer's life. It illustrates that after a period of suffering, God's grace acts not only to repair and establish but also to impart the spiritual vigor and power necessary for enduring faith.

How the KJV Renders It

Translation

Strong’s lists the renderings but not their weight. These are counted from the King James text of the tagged verses — the bar under each is how often the translators actually reached for it. Select one to filter the occurrences below.

Grammatical Forms

Morphology

In the Greek New Testament, this word appears as a verb across 1 occurrence, inflected in 1 grammatical form — each row is one form, and the bar is how often it is that form.

  • Future Active Indicative 3rd Singular
Singular
One.
3rd
Third person — the one spoken about ("he"/"they").
Future
Action yet to take place.
Active
The subject performs the action.
Indicative
A plain statement of fact.

Related Words

Related

Other entries the study above points to — each one is drawn from a reference it makes. Follow the trail to see how the words connect.

Theographic Context

Context

The people, places, and span of history the verses containing this word touch on — drawn from the theographic tagging of Scripture. Select any name to isolate its verses in the occurrence list.

Biblical Distribution

Distribution

1 verse, all in 1 Peter — and none of the other 26 New Testament books.

Every Occurrence

Concordance

Every verse where the word is tagged in the King James text. Filter by book, by the English word the translators chose, or search within the verses.

Sources. Definition and numbering: James Strong, Exhaustive Concordance of the Bible (1890). Morphology: STEPBible / Tyndale House (CC BY). Verse tagging: the King James text keyed to Strong’s numbers. Every count on this page is computed from the tagged corpus, not estimated.