### Core Meaning & Semantic Range
The Greek word **ísēmi**, represented by `{{G2467}}`, is assumed to be a base verb meaning **to know**. Although it only appears 2 times in 2 unique verses, its usage points to a type of knowledge that is established and commonly held, serving as a foundation for an argument or testimony.
### Biblical Occurrences & Contextual Analysis
In its biblical occurrences, `{{G2467}}` establishes a known fact as a point of reference. In his defense before Agrippa, Paul states that his "manner of life from my youth... **know** all the Jews" [[Acts 26:4]]. This appeal to shared knowledge sets the stage for his testimony of conversion. Similarly, the author of Hebrews uses it as a solemn warning, reminding the readers of a known story: "For ye **know** how that afterward, when he would have inherited the blessing, he was rejected" [[Hebrews 12:17]]. In both cases, the word refers to an awareness of past events or character that is beyond dispute.
### Related Words & Concepts
Several related words help clarify the contexts in which `{{G2467}}` is used:
* `{{G981}}` **bíōsis** (manner of life): This is what the Jews were said to **know** about Paul. It refers to his living and mode of conduct before his conversion [[Acts 26:4]].
* `{{G2816}}` **klēronoméō** (to be an heir to, inherit): This word describes what Esau desired to do but could not. The knowledge of his failure to **inherit** the blessing serves as a key lesson in the Hebrews passage [[Hebrews 12:17]].
* `{{G593}}` **apodokimázō** (to disapprove, repudiate): This term describes Esau's fate; he was **rejected**. The audience's knowledge of this rejection is central to the warning being given [[Hebrews 12:17]].
* `{{G3341}}` **metánoia** (repentance): This is what Esau could not find a place for, a fact the readers are expected to **know** as a sobering truth [[Hebrews 12:17]].
### Theological Significance
The theological weight of `{{G2467}}` is found in its function as a foundation for truth and warning.
* **Knowledge as Testimony:** In Acts, Paul's appeal to what the Jews **know** about his former **manner of life** `{{G981}}` validates the radical nature of his transformation. The undisputed knowledge of his past makes the testimony of his new life in Christ more powerful [[Acts 26:4]].
* **Knowledge as a Sobering Reminder:** In Hebrews, knowledge of Esau's irreversible consequence is not trivial. It is a shared understanding used to exhort believers to diligence, reminding them that some choices have permanent outcomes and that being **rejected** `{{G593}}` is a real danger [[Hebrews 12:17]].
### Summary
In summary, while appearing rarely, `{{G2467}}` is a potent word for **know**. It is used not for abstract concepts, but for established, shared knowledge of a person's life or a critical historical event. Whether establishing the factual basis for a personal testimony or issuing a grave warning based on past failures, **ísēmi** underscores a knowledge that is meant to be acknowledged and acted upon.
TRV