from a derivative of a compound of Α (as a negative particle) and a derivative of διαφθείρω; incorruptibleness, i.e. (figuratively) purity (of doctrine):--uncorruptness.
### Core Meaning & Semantic Range
The Greek word **adiaphthoría**, represented by `{{G90}}`, denotes **incorruptibleness** or the figurative **purity** of doctrine. This term is exceptionally rare, appearing only **1 time** in **1 unique verse** in the Bible. Its meaning is derived from a compound of a negative particle with a word for corruption, emphasizing a state of purity and soundness in teaching.
### Biblical Occurrences & Contextual Analysis
The single use of `{{G90}}` is found in an instruction to Titus, where he is told to be a model for others. In the midst of a list of virtues, the text specifies, "in doctrine shewing **uncorruptness**" [[Titus 2:7]]. This places the word squarely in the context of teaching, linking personal integrity directly to the purity of the message being taught. The quality of uncorruptness is presented alongside gravity and sincerity as essential characteristics for a teacher.
### Related Words & Concepts
Several related words in the immediate context of [[Titus 2:7]] help clarify the meaning of `{{G90}}`:
* `{{G1319}}` **didaskalía** (instruction, doctrine, learning, teaching): This is the direct subject to which **uncorruptness** must be applied. Believers are warned against being "carried about with every wind of **doctrine**" [[Ephesians 4:14]], highlighting the need for the stability that `{{G90}}` implies.
* `{{G2041}}` **érgon** (deed, doing, labour, work): The call for uncorruptness in doctrine is part of a larger exhortation to be "a pattern of good **works**" [[Titus 2:7]]. This shows that sound teaching is itself a virtuous **work** that must align with a righteous life.
* `{{G2570}}` **kalós** (good, honest, well): This adjective modifies "works" in [[Titus 2:7]], establishing that the entire pattern of life, including one's teaching, should be visibly **good** and virtuous.
* `{{G4587}}` **semnótēs** (gravity, honesty): This virtue is listed immediately after `{{G90}}` in [[Titus 2:7]], suggesting a probity and seriousness that should accompany pure doctrine.
* `{{G861}}` **aphtharsía** (immortality, incorruption, sincerity): Also appearing in the list in [[Titus 2:7]], this word's meaning of genuineness and incorruptibility strongly reinforces the concept of `{{G90}}`.
### Theological Significance
The theological weight of `{{G90}}` is concentrated in its single appearance, establishing a clear standard for spiritual instruction.
* **Doctrinal Integrity:** The primary significance of `{{G90}}` is its demand for purity in teaching. It stands as a guard against corrupt or deceitful doctrines, such as the "doctrines of devils" [[1 Timothy 4:1]] or teachings designed to please "itching ears" [[2 Timothy 4:3]].
* **The Unity of Belief and Behavior:** Its placement within the command to be "a pattern of good works" [[Titus 2:7]] demonstrates that uncorrupt doctrine cannot be separated from a life of good deeds. What one teaches must be reflected in how one lives.
* **A Standard for Leadership:** The instruction is given to Titus as a leader. Therefore, `{{G90}}` establishes a high standard of incorruptibility for those who teach and lead in the faith, as their words and life serve as a model for others.
### Summary
In summary, although `{{G90}}` appears only once, **adiaphthoría** carries significant weight. It defines the crucial quality of **uncorruptness** that must characterize biblical doctrine. Its sole mention in [[Titus 2:7]] firmly links this doctrinal purity to a life of good works, gravity, and sincerity. The word serves as a concise and powerful reminder that the integrity of one's teaching is an essential part of an exemplary and God-honoring life.