Equivocation
Using the same word in two different senses within an argument, making an invalid inference appear valid. In theology, words like 'faith,' 'law,' 'world,' 'flesh,' and 'spirit' carry multiple distinct meanings that are frequently conflated.
Source: Aristotle, Sophistical Refutations (c. 350 BCE) – Public Domain
Also known as: Semantic Equivocation, Semantic Shift, Double Meaning Fallacy
Equivocation is the fallacy of using a word or phrase in two or more different senses within a single argument, allowing the argument to appear valid when it is not. Because the same word connects the premises, the reasoning seems coherent — but the inference only holds if the word means the same thing throughout. When it doesn't, the conclusion does not actually follow from the premises.
Equivocation is especially dangerous in biblical interpretation because the biblical languages are rich in polysemy — words that carry multiple, distinct meanings — and English translation inevitably collapses distinctions that the original languages preserve. Greek has at least four words for love (agape, phileo, storge, eros), multiple words for time (chronos, kairos), and words whose precise meanings vary by author, genre, and context. Latin had two distinct words for 'right' (ius and fas) and for 'law' (lex and jus) that English does not consistently distinguish.
The most consequential biblical equivocations involve the word 'faith.' James 2:24 says 'a person is justified by works and not by faith alone.' Romans 3:28 says 'a person is justified by faith apart from works of the law.' This apparent contradiction generated enormous theological conflict — and much of that conflict depended on equivocating on the word 'works.' Paul uses 'works' to mean Mosaic ceremonial observances that marked Jewish identity (circumcision, dietary laws, calendar observances); James uses 'works' to mean active expression of living faith through deeds of mercy. They are not contradicting each other — they are addressing different things with the same word.
Another critical case is 'law' (nomos) in Paul. In Romans and Galatians, 'law' sometimes means the Mosaic covenant in its entirety, sometimes the specific ceremonial requirements that marked Jewish identity, sometimes the Torah as a principle of existence before God, and sometimes the moral law as a standard of righteousness. Failing to track which sense Paul intends in any given verse produces serious misreadings of his argument.
- 1An argument hinges on a word that has multiple meanings in ordinary usage, biblical usage, or across translations
- 2Two biblical passages seem to contradict each other, and the contradiction dissolves when the key word is examined in its specific context in each passage
- 3A theological conclusion is reached by applying a word's meaning from one context to another context where it means something different
- 4The same English word translates different Greek or Hebrew words, and those distinctions are theologically significant
- 5An argument from a concordance match ('the Bible uses this word in passage A, so it must mean the same in passage B') without examining the context of each usage
Biblical equivocation is not always unintentional — some equivocations in interpretation reflect genuine difficulty distinguishing word senses across languages and contexts. The solution is not to avoid engagement with these words but to develop lexical precision: using Hebrew and Greek lexicons, examining how each author uses a term across their whole corpus, and noticing when translators have made a choice among possible meanings. The great theological controversies of church history are largely controversies about word meaning: What does 'substance' (ousia, homoousios) mean in Trinitarian theology? What does 'body and blood' mean in eucharistic theology? What does 'merit' mean in discussions of justification? Precision in word usage is not pedantry — it is the difference between agreement and the appearance of disagreement, and between genuine understanding and verbal fog.
Identify the key word whose meaning is in question
Ask: Which word in this argument or passage carries the interpretive weight, and does it have more than one recognized meaning in biblical usage?
Key candidates for equivocation include: faith (pistis — trust, faithfulness, the body of doctrine), law (nomos — Mosaic covenant, Torah as principle, natural law, ceremonial law), righteousness (dikaiosyne — right standing before God, moral uprightness, distributive justice), flesh (sarx — physical body, sinful inclination, ethnic identity), spirit (pneuma — the Holy Spirit, the human spirit, wind, attitude), love (agape, phileo — Greek distinctions), and world (kosmos).
Look up the word in a Greek or Hebrew lexicon
Ask: What range of meanings does this word carry in biblical Greek or Hebrew, and how does the standard lexicon classify them?
For New Testament terms, the BDAG (Bauer-Danker-Arndt-Gingrich) Greek-English lexicon is the standard reference. For Old Testament terms, BDB (Brown-Driver-Briggs) and HALOT are the major tools. Lexicons distinguish word senses and provide examples of each from the literature. This step converts the impression of knowing what a word means into documented knowledge.
Examine how the author uses the word across their whole corpus
Ask: How does this specific biblical author use this word in their other writings? What sense is most characteristic of their usage?
Paul uses sarx (flesh) differently from John, who uses it more straightforwardly for physical body. Paul uses nomos (law) in complex ways that require tracking across individual occurrences in each letter. Authors develop characteristic vocabularies, and the most reliable guide to what a word means in a specific passage is how the same author uses it in comparable contexts.
Determine which sense fits the immediate context
Ask: Given the paragraph, chapter, and book context, which sense of the word makes the most coherent reading of the passage?
Context is the decisive factor in determining word sense. The meaning of sarx in 'because of a bodily illness I first preached the gospel to you' (Galatians 4:13) is settled by the context: Paul is describing a physical ailment. The meaning in 'those who live according to the flesh cannot please God' (Romans 8:8) is settled by the contrast with 'Spirit' and the description of 'the mind governed by the flesh.' Context, not etymology or concordance matching, determines meaning.
Check whether your interpretation uses the word consistently across the argument
Ask: Am I using this word in the same sense throughout my argument, or does my conclusion require shifting its meaning partway through?
Write out your interpretive argument explicitly and check that the key word means the same thing at each occurrence. If the argument only works when the word shifts sense — 'faith saves (sense A) therefore faith without works is sufficient (sense B)' — the argument equivocates and the conclusion does not follow.