What Is a Bible Concordance? (How to Use One Well)

What a Concordance Is—and What It Is Not

A concordance is an index, not a dictionary. It locates words; it does not define them. This distinction matters more than it might appear.

When you look up the word "peace" in a concordance, you receive a list of every verse in the Bible that contains the English word "peace" in that particular translation. What you do not receive is a definition of peace, an account of the Hebrew or Greek semantic range, a distinction between the various words translated "peace," or any judgment about which usage is most theologically significant. For those things, you need a lexicon—a biblical dictionary organized by the original-language word rather than the English translation.

The value of a concordance is that it surfaces patterns. If you want to know how a word functions across a book, an author, or the whole canon, a concordance gives you the full list of references instantly. You can then examine those references one by one, observe how the author uses the term in different contexts, and draw conclusions grounded in the full range of usage rather than a single passage.

This is also where a concordance reveals one of the persistent complexities of Bible study: one English word may translate multiple Hebrew or Greek words, and one Hebrew or Greek word may be translated into English by multiple different words. A concordance keyed to the original languages—like Young's or Strong's—makes this visible. A simple alphabetical concordance based on the English text alone does not.

A Brief History of Bible Concordances

The first known concordance of any Scripture was produced in the thirteenth century. Hugo de Saint-Cher, a Dominican friar working at the University of Paris around 1230, organized as many as five hundred Dominican friars to compile a concordance of the Latin Vulgate. It was an enormous undertaking: every significant word in the Bible indexed by hand, copied, and organized alphabetically. The project took years and required a cooperative effort that would not be attempted again at that scale until the printing press made mass reproduction possible.

Alexander Cruden (1699–1770) produced the first major English-language concordance largely on his own. His Complete Concordance to the Holy Scriptures was published in 1737 and indexed every word of the King James Version. Cruden was a Scottish bookseller who undertook the project as an act of personal devotion and scholarship. He worked on it for years, laboring with extraordinary care for a single person working without assistance. The concordance went through multiple editions during his lifetime and remained the standard English concordance for well over a century. Its title is somewhat misleading by modern standards—later concordances proved more exhaustive—but its importance in the history of English Bible study is difficult to overstate.

Robert Young (1822–1888), a Scottish self-taught linguist and scholar, published his Analytical Concordance to the Bible in 1879. Young's innovation was to organize entries not just alphabetically by English word but by the underlying Hebrew or Greek word. Under each English entry, he grouped verses by which original-language term they translated, so that a student could see at a glance that the English word "love," for instance, represents several distinct Hebrew and Greek words. Young's concordance also included brief transliteration and a notation of the original term's meaning. It remains in print today and is particularly valued by students who want analytical precision without undertaking full lexicon study.

James Strong (1822–1894), a Methodist theologian and professor at Drew Theological Seminary in Madison, New Jersey, published his Exhaustive Concordance of the Bible in 1890 after thirty-five years of work. Strong's concordance indexes every word in the King James Version and assigns a unique number to each Hebrew and Greek word in the biblical text. These numbers—Strong's numbers—allow a reader without knowledge of the original languages to identify the specific Hebrew or Greek term behind any English word and look it up in the accompanying Hebrew and Greek dictionaries at the back of the volume. The concordance is called exhaustive because it includes every occurrence of every word, including particles, prepositions, and articles that earlier concordances had omitted.

Strong's Exhaustive Concordance became the most widely used reference tool in English-language Bible study and remains the standard against which digital word-study tools are measured.

Types of Concordances

Not all concordances cover the same ground or serve the same purpose.

Beyond these categories, concordances are also distinguished by which translation they index. A concordance built on the King James Version is not directly useful for word study when reading the English Standard Version or the New International Version, because different translations render original-language terms with different English words. Translation-specific concordances exist for the ESV, NIV, NASB, and other major versions, though they vary in the depth of their original-language indexing.

The practical consequence is that you should match your concordance to your primary Bible translation—or move to a digital tool that can work across translations simultaneously. For a comparison of the major English translations, see our guide on Bible translations.

How to Use a Print Concordance

The basic workflow is the same regardless of which print concordance you use.

Step 1: Identify the word you want to study. Suppose you are studying Romans 5 and want to understand what Paul means by "justified." You note the English word and move to the concordance.

Step 2: Find the word alphabetically. Under "justified" you will find a list of every verse in your translation where that word appears. Each entry includes the book, chapter, and verse, along with enough surrounding text to identify the passage without looking it up.

Step 3: Read through the full list. This is the concordance doing its core job. You are now looking at every use of that word across Scripture. Notice which books use it heavily, which authors favor it, and how the surrounding context shifts from occurrence to occurrence.

Step 4: Look for patterns and ask questions. Does the word appear in similar contexts across different authors? Does it shift in meaning between the Old and New Testaments? Are there passages where its use seems distinctive or unexpected? These observations become the basis for interpretation.

If you are using an exhaustive concordance like Strong's, each verse entry will include a number in the margin linking to the Hebrew or Greek word behind that English translation. You can look that word up in the dictionary at the back of the volume to see the original term, its root, and a brief definition. Young's Analytical Concordance does the same thing differently — it groups entries under each English word by their underlying original-language term, so you can see at a glance when "justified" is translating two different Greek words.

This process does not replace lexicon study or commentary reading. It opens the door to it. The concordance tells you where to look; the lexicon and commentary tell you what to make of what you find.

How to Use an Online Bible Concordance: A Worked Example

You do not need to buy a reference library to do serious word study. Free online concordances like Bible Hub and Blue Letter Bible tag every word of the text with Strong's numbers and link them to full lexicon entries, and Lumenology's Word Study tool integrates the same data into the reading experience. What follows is the workflow that gets the most out of any of them, walked through with a real example.

Suppose you are studying Romans 5:1: "Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ" (NASB). You want to understand what "justified" means.

Step 1: Start from the verse, not the search box. Open the passage you are studying and identify the exact word in its context. Word study that begins with a bare dictionary lookup, detached from a specific passage, tends to drift. You are studying "justified" as Paul uses it in Romans 5:1, not "justification" in the abstract.

Step 2: Find the Strong's number behind the English word. In any tagged online tool, click or tap the word. Behind "justified" in Romans 5:1 is the Greek verb dikaioō, Strong's number G1344. This single step moves you from studying an English translation choice to studying the word Paul actually wrote.

Step 3: Search by the number, not the English word. This is the move most readers never make, and it is where online tools decisively beat an English word search. Dikaioō occurs 40 times in the Greek New Testament, but the King James Version translates it "justify" in only 37 of them. In Romans 6:7 it is rendered "freed": "for he who has died is freed from sin" (NASB). An English search for "justified" would never surface that verse, yet it uses the same Greek verb, in the same letter, in a closely related argument. Searching by G1344 returns all 40 occurrences no matter how each one was translated.

Step 4: Check the lexical range before drawing conclusions. The lexicon entry for dikaioō lists a range of senses: to render righteous, to show to be righteous, and to declare or pronounce righteous. A range is not a menu you choose from freely. Which sense applies in Romans 5:1 is determined by Paul's argument, not by which definition you find most appealing.

Step 5: Read the key occurrences in their own contexts. Work through the list, and let awkward occurrences do their work. Luke 7:29 says the people "acknowledged God's justice" (NASB), using the same verb dikaioō. Nobody thinks the people made God righteous; they declared him to be righteous. That single occurrence clarifies the declarative sense of the verb better than a paragraph of definitions. Reading each occurrence in context is also your main protection against reading a preferred meaning into the text, the error our guide on exegesis vs. eisegesis treats in full.

Step 6: Follow the cross-references. Word study tells you how a word behaves; cross-references tell you where the idea travels. From Romans 5:1, the reference chain runs back through Habakkuk 2:4 and Genesis 15:6, the two Old Testament texts Paul builds his justification argument on. Our guide on how to use cross-references covers this step in detail.

Step 7: Finish with cited study notes. Once you have your own observations, check them against commentaries and study resources that name their sources, so you can distinguish an established reading from a novel one. If you use AI-based tools for this step, prefer ones that cite where their claims come from; our guide on using AI for Bible study explains how to do that without outsourcing your judgment.

The whole sequence takes minutes rather than the hours it once required with print volumes, but notice that the tools have only accelerated the steps. None of them can be skipped.

Why Searching by Strong's Number Matters: The Case of Chesed

If the dikaioō example shows an English search missing occurrences, the Hebrew noun chesed (Strong's H2617) shows the problem at full scale.

Chesed describes God's loyal, covenantal love, and it appears roughly 250 times in the Old Testament. The King James Version translates it with more than ten different English words:

A reader searching the English word "mercy" finds 149 of these occurrences mixed together with verses translating entirely different Hebrew words, and misses the other hundred chesed passages completely. Searching by H2617 reunites the whole family: Ruth's loyalty to Naomi (Ruth 1:8), the refrain of Psalm 136 ("His lovingkindness is everlasting"), and Micah 6:8 ("to love kindness") are all the same Hebrew word, and the pattern only becomes visible when you trace the original term rather than any single English rendering.

This is the core skill an online concordance makes available to everyone: moving from the English surface of the text to the original-language layer underneath it, without needing to read Hebrew or Greek.

The Limits of a Concordance

A concordance is a location tool, not an interpretation tool. This is worth stating plainly, because students sometimes use concordances to draw conclusions the tool cannot support.

The most common error is assuming that every occurrence of a word carries the same meaning. It does not. The Greek word sarx, typically translated "flesh," is used in the New Testament to refer to physical body tissue, to sinful human nature, to ethnic ancestry, and to human beings generally. A word study that assumes sarx means the same thing in every occurrence will produce confused exegesis. The concordance shows you all the places the word appears; the lexicon and commentaries help you determine what it means in each context.

A related error is assuming that because a word appears in two passages, the passages must be illuminating each other. This is not always the case. Word links can be meaningful—Matthew's use of Exodus language, Paul's quotations of the Psalms—but they are not automatically significant. Context, authorial intent, and canonical structure all bear on whether a verbal parallel carries interpretive weight.

Scholars have referred to this danger as "illegitimate totality transfer"—the mistake of reading the full semantic range of a word into every specific occurrence. James Barr's The Semantics of Biblical Language (Oxford University Press, 1961) remains the most rigorous analysis of this problem, though it predates the digital word-study era. His argument is that meaning is determined by usage in context, not by the full range of a word's possible meanings accumulated across time.

Used within its limits, a concordance is invaluable. Used beyond them, it produces exegesis that is technically grounded and interpretively unreliable at the same time. For a full picture of what belongs alongside a concordance in a serious study toolkit, see our guide to the best Bible study tools.

Print Concordances and Digital Word Study

For most of the twentieth century, a print concordance was an essential component of any serious student's reference library. The standard setup for a pastor or Bible teacher included Strong's Exhaustive Concordance, a Hebrew lexicon (Brown-Driver-Briggs or Gesenius), a Greek lexicon (Thayer's, Bauer-Arndt-Gingrich, or the Greek-English Lexicon of the New Testament by Louw and Nida), and an interlinear Bible. The concordance was the entry point that connected the others.

Digital tools have largely replaced this workflow, or rather, they have absorbed it into something faster and more integrated. A modern Bible study platform indexes the full text of multiple translations simultaneously, links every word to its Strong's number automatically, displays the original-language entry on demand, and surfaces every occurrence across the canon without requiring the student to flip between volumes. What once took twenty minutes of physical searching now takes seconds.

This has not made the underlying skills less important. Understanding what a concordance does—and what it cannot do—is essential for using any word-study tool responsibly, digital or otherwise. The display layer changes; the interpretive questions remain the same.

What has changed is accessibility. Before digital tools, meaningful engagement with the original languages required owning multiple expensive reference volumes and learning how to navigate them. Now a student with a well-designed Bible study application can move from English text to original language to lexical entry to cross-references in a single session, without prior experience with print concordances at all.

How Lumenology Supports Word Study

Lumenology is built around the kind of study that a concordance is meant to enable—moving from a word in the English text to the original language and then tracing that word across Scripture with precision.

The Word Study tool surfaces the Hebrew or Greek term behind any word in the passage you are reading, displays the Strong's number and lexical range, and lists related passages across the canon so you can see how the word functions in different contexts. It replaces the physical workflow of concordance lookup, dictionary consultation, and cross-reference assembly in a single integrated panel.

The Bible reader lets you compare multiple translations side by side, which addresses one of the core limitations of any single-translation concordance: when you can see how different translations render the same Greek or Hebrew term, the translation choices themselves become part of your study.

Research Assistant returns cited answers when you have interpretive questions—what does this word mean in this context, how have commentators understood this passage, what is the range of scholarly opinion on this term's usage? The answers are grounded in named sources rather than raw model generation, so you can verify claims against the actual reference material.

The tools are designed to support the same discipline that print concordances have always served: careful attention to the actual words of the text, in their original form, across their full canonical range. The medium is different. The task is the same.

FAQ

What is the difference between a concordance and a lexicon?

A concordance lists where a word appears. A lexicon defines what a word means. Both are organized by word, but a concordance is keyed to the English translation and provides references, while a lexicon is keyed to the original Hebrew or Greek term and provides a detailed account of its meaning, root, range of usage, and grammatical forms. In practice, you use a concordance to find where a word appears and which original term underlies it, then move to a lexicon to understand what that term actually means. Strong's Exhaustive Concordance includes brief dictionary entries that provide some lexical information, but they are not a substitute for a full lexicon like Brown-Driver-Briggs (Hebrew) or Bauer-Danker-Arndt-Gingrich (Greek).

Do I need to know Hebrew or Greek to use a concordance?

No. The design of Strong's Exhaustive Concordance was specifically intended to allow students without knowledge of the original languages to identify and look up the Hebrew or Greek term behind any English word. You do not need to read the original languages—you need to follow the number. That said, even a basic familiarity with how Hebrew and Greek work improves the quality of word study considerably, because it helps you understand why a word carries different nuances in different grammatical contexts.

Does every concordance use Strong's numbers?

No. Strong's numbers are the most widely used reference system in English-language Bible study, but they are not universal. Young's Analytical Concordance organizes entries by original-language word without using Strong's numbers. Concordances built on translations other than the King James Version may use the same numbers or may use alternative systems. Most major digital Bible study platforms have adopted Strong's numbers as a common reference layer because it allows content from different sources to be linked consistently.

Is a concordance useful if I read a modern translation like the ESV or NIV?

Yes, with the caveat that you need a concordance matched to your translation. A King James concordance will not list references correctly for an ESV or NIV reader, because the translations use different English words for the same original-language terms. ESV and NIV concordances exist and follow the same general structure as Strong's. Alternatively, digital tools solve this problem by indexing multiple translations simultaneously and linking all of them to the same underlying Strong's numbers, so you can do word study from any translation without worrying about which physical concordance to use.

What is the best free online Bible concordance?

Bible Hub and Blue Letter Bible are the strongest free options, and neither requires an account or purchase. Both tag every word of the text with Strong's numbers, link each number to Hebrew and Greek lexicon entries, and index multiple translations at once. Bible Hub is particularly strong for comparing how different translations render the same verse side by side. Blue Letter Bible is particularly strong for lexicon depth, interlinear display, and occurrence lists sorted by book. Lumenology's Word Study tool draws on the same underlying data and adds related passages and cited study notes in the same panel where you read.

What is the difference between a concordance and a cross-reference?

A concordance traces a word. It lists every verse where a specific English, Hebrew, or Greek word appears, which makes it the right tool for word study. Cross-references trace an idea. They point you to passages that address a related theme, image, or line of argument even when the wording is completely different. The two are complementary: a word search for dikaioō will not surface Genesis 15:6, but the cross-references on Romans 4 will, because Paul is quoting it. Our guide on how to use cross-references in Bible study covers when to reach for each tool.

Can AI Bible study tools replace a concordance?

No, and the two serve different functions. AI tools can summarize, explain, and point you toward resources quickly, but they sometimes misstate claims about original-language words, which is exactly the territory a concordance covers. A concordance gives you the actual data: every occurrence of the actual word in the actual text, which you can verify with your own eyes. The sound workflow is to use AI tools that cite their sources for orientation and synthesis, then confirm any original-language claim against a concordance and lexicon directly. Our guide on how believers can use AI for Bible study lays out that verification habit in detail.