### Core Meaning & Semantic Range
The Greek word **pistóō**, represented by `{{G4104}}`, means **to assure**. It appears only **1 time** in **1 unique verse** in the Bible. Derived from the word for "faithful," it conveys the idea of making something sure, confirming a belief, or establishing a deep-seated conviction.
### Biblical Occurrences & Contextual Analysis
The sole use of `{{G4104}}` is found in Paul's charge to Timothy, where he urges him to "continue thou in the things which thou hast learned and **hast been assured of**" [[2 Timothy 3:14]]. In this context, the word signifies a level of certainty that goes beyond simple intellectual agreement. It is an assurance that forms the bedrock of Timothy's faith, enabling him to stand firm. This assurance is directly linked to his knowledge of the trustworthy source from whom he learned the truth.
### Related Words & Concepts
Several related words in the immediate context of [[2 Timothy 3:14]] illuminate its meaning:
* `{{G3306}}` **ménō** (to stay, continue, abide): This verb is used to command Timothy to **continue** or abide in the doctrines he has been assured of. It emphasizes perseverance and stability, as seen in the call to "abide in me" [[John 15:4]].
* `{{G3129}}` **manthánō** (to learn): Timothy's assurance is founded upon what he has **learned**. This is not a passive reception of information but an active process of understanding, as when Jesus tells his followers to **learn** of him [[Matthew 11:29]].
* `{{G1492}}` **eídō** (to know, see): The assurance is strengthened by **knowing** the character and reliability of the teacher [[2 Timothy 3:14]]. This form of knowledge implies a certainty that can be seen or perceived, a vital component for steadfastness in the work of the Lord [[1 Corinthians 15:58]].
### Theological Significance
The theological weight of `{{G4104}}`, though based on a single occurrence, is significant. It underscores a key aspect of discipleship and faith.
* **Conviction as a Foundation:** The word establishes that true Christian faith is not merely intellectual ascent but a deep, personal assurance. It is this conviction that allows a believer to **continue** `{{G3306}}` in the faith.
* **The Basis of Assurance:** This assurance is not groundless. As seen in its context, it is rooted in having **learned** `{{G3129}}` the truth from a reliable source that is **known** `{{G1492}}` to be trustworthy.
* **Endurance Through Certainty:** Being "assured of" the truth is presented as the antidote to being swayed by false doctrines. It is what enables a believer to remain steadfast and produce fruit that will **remain** `{{G3306}}`, as described in [[John 15:16]].
### Summary
In summary, `{{G4104}}` provides a critical concept for understanding the nature of mature faith. It is not enough to simply learn doctrine; one must be **assured** of its truth. This single use in scripture, in its charge to Timothy, highlights that a firm conviction, rooted in learning from a known and trusted source, is essential for a believer to continue, abide, and stand firm in their walk with God.
TRV