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ἄλογος

álogos /al'-og-os/ Ask about this word
from Α (as a negative particle) and λόγος
irrational
brute, unreasonable.
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Core Meaning & Semantic Range

The Greek word álogos, represented by G249, means irrational. It is derived from a negative particle and λόγος (logos), and it appears 3 times in 3 unique verses. The term is used to describe something as brute or unreasonable.

Biblical Occurrences & Contextual Analysis

The word G249 is used to condemn the behavior of certain individuals by comparing them to animals. In 2 Peter, they are described as "natural brute beasts, made to be taken and destroyed" 2 Peter 2:12. Jude uses a similar description, stating that what they know naturally, they know "as brute beasts" and in these things they corrupt themselves Jude 1:10. In a different context, in the book of Acts, the word describes a lack of sound judgment, where it "seemeth... unreasonable to send a prisoner" without also signifying the charges against him Acts 25:27.

Related Words & Concepts

Several related words help clarify the meaning of G249:

  • G2226 zōon (a live thing, i.e. an animal:--beast): This word appears directly with G249 to describe those who act without reason as "brute beasts" (2 Peter 2:12, Jude 1:10).
  • G5446 physikós ("physical", i.e. (by implication) instinctive):--natural: This adjective is paired with G249 to emphasize that the behavior is like that of "natural brute beasts" 2 Peter 2:12, driven by instinct rather than reason.
  • G50 agnoéō (not to know (through lack of information or intelligence)): This concept of ignorance is central to the meaning of G249, as those described as brute beasts "speak evil of the things that they understand not" 2 Peter 2:12.
  • G156 aitía (a cause (as if asked for), i.e. (logical) reason (motive, matter), (legal) crime): In the legal context of Acts, it is considered unreasonable G249 to send a prisoner without specifying the crimes G156 against him, linking irrationality to a lack of legal cause Acts 25:27.

Theological Significance

The theological weight of G249 is found in its sharp contrasts.

  • Instinct Over Reason: The word is used to draw a distinction between divine reason and base, animal instinct. False teachers are depicted as operating like "brute beasts," who "speak evil of the things that they understand not" (2 Peter 2:12, Jude 1:10).
  • A State of Corruption: Being álogos is directly linked to moral decay and destruction. These individuals are described as "made to be taken and destroyed" and will "utterly perish in their own corruption" 2 Peter 2:12. Similarly, in the things they know naturally, "they corrupt themselves" Jude 1:10.
  • Lack of Logical Grounds: In Acts, G249 highlights the importance of reason in matters of justice. It is deemed unreasonable to act without presenting the corresponding crimes G156, establishing that proper judgment requires a logical foundation Acts 25:27.

Summary

In summary, G249 álogos is a term that describes a state devoid of reason or logic. It is applied both to the instinct-driven, corrupt nature of false teachers who act like brute beasts destined for destruction 2 Peter 2:12 and to procedural failings that are unreasonable due to a lack of logical grounds Acts 25:27. The word effectively contrasts godly wisdom with a state of being that is either animalistic or illogical.

Grammatical Forms

In the Greek New Testament, this word appears as an adjective across 3 occurrences, inflected in 2 grammatical forms.

  • Nominative Plural Neuter
  • Nominative Singular Neuter
Nominative
The subject of the verb.
Singular
One.
Plural
More than one.
Neuter
Neuter grammatical gender.

Theographic Context

Biblical Distribution

Appears in 3 verses across 3 books. Most frequent in Acts (1 verses).

1
Acts
1
2 Peter
1
Jude

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