1. Overview

βεβαίωσις (bebaiōsis), pronounced “beh-BYE-oh-sis,” is a Greek noun that means “confirmation” or “establishment.” This term is derived from the root word bébaios (G949), which signifies something that is firm, stable, or reliable. The verb bebaioō (G950) further develops this idea, meaning “to confirm” or “to make firm.” Consequently, bebaiōsis refers to the act of making something firm or the state of being confirmed. In the New Testament, this word is used to describe the confirmation of the gospel or the certainty of God’s promises.

2. Lexical Details

BDAG (Bauer-Danker-Arndt-Gingrich) defines bebaiōsis as “confirmation, firm establishment, or validation.” BDAG emphasizes that this term often appears in contexts where an idea, statement, or promise is being made certain or confirmed, particularly within a religious or covenantal framework. The term highlights the reliability and firmness of what is being affirmed.

Thayer’s Lexicon describes bebaiōsis as “a making sure, confirmation, or establishment.” Thayer’s highlights its use in the New Testament to express the confirmation of the gospel message or the certainty of faith. This lexicon emphasizes that bebaiōsis is tied closely to the idea of making something reliable and trustworthy, often through divine intervention.

Vine’s Expository Dictionary aligns with BDAG and Thayer’s, noting that bebaiōsis means “confirmation” or “guarantee.” Vine’s points out that the word is used to describe the act of making something firm, often with divine backing, ensuring that what is confirmed is unchangeable and dependable.

LSJ (Liddell-Scott-Jones) gives insight into the classical usage of bebaiōsis, where it was employed to describe the legal confirmation of agreements, oaths, and treaties. The word was often used in contexts that required a firm establishment of facts or promises, making it binding and trustworthy.

Biblical references:

• Hebrews 6:16: “For people swear by something greater than themselves, and in all their disputes an oath is final for confirmation (bebaiōsis).” Here, bebaiōsis is used to describe the act of confirming or validating an oath, emphasizing its final and binding nature.
• Philippians 1:7: “It is right for me to feel this way about you all, because I hold you in my heart, for you are all partakers with me of grace, both in my imprisonment and in the defense and confirmation (bebaiōsis) of the gospel.” In this verse, bebaiōsis is associated with the defense and establishment of the gospel message, highlighting the firmness of the truth being proclaimed.

3. Classical Usage

In classical Greek literature, bebaiōsis was commonly used to describe the act of confirming or establishing something, particularly in legal or formal contexts:

• Plato’s “Republic”: Plato uses the term bebaiōsis to describe the confirmation of philosophical truths, emphasizing the process of making these truths firm and reliable through logical reasoning.
• Aristotle’s “Nicomachean Ethics”: Aristotle employs bebaiōsis in the context of ethical principles, where the confirmation of virtuous actions leads to the establishment of a good and stable character.
• Herodotus’ “Histories”: In Herodotus’ writings, bebaiōsis is used to describe the confirmation of treaties and alliances between city-states, ensuring that these agreements were legally binding and trustworthy.

These examples from classical literature demonstrate that bebaiōsis was a term deeply connected with the idea of making something firm, reliable, and legally or ethically binding, whether in the context of philosophy, ethics, or international relations.

4. Summary

The Greek noun bebaiōsis (G951) is a significant term that conveys the concept of confirmation, establishment, or validation. It is used in the New Testament to describe the confirmation of oaths, promises, and the gospel message, emphasizing the reliability and firmness of what is being confirmed. Lexicons such as BDAG, Thayer’s, and Vine’s highlight the word’s connection to the idea of making something certain and trustworthy, particularly in a divine or religious context. In classical Greek literature, bebaiōsis was used to describe the confirmation of philosophical truths, ethical principles, and legal agreements, underscoring the importance of making these concepts firm and binding. Overall, bebaiōsis serves as a foundational term in expressing the certainty and reliability of divine truths, ethical principles, and legal agreements, making it a crucial concept in both biblical and classical Greek thought.