I remember a big writing task in a college English class. It was a paper about a classic book. I worked on it for weeks. I was so proud when I turned it in. But when I got it back, my heart fell. It had red marks all over it. One common mistake was about a capital letter. My teacher had circled the word “bible” each time I had written it with a small “b.” I thought “bible” was just a word for a book. This simple grammar rule made me question what I knew. It started a trip to understand a question that fools writers, students, and even experts every day: do you capitalize bible?
This question seems small, but knowing the answer to Do You Capitalize Bible is a big deal. Getting it right shows you know grammar. It also shows you are respectful of what the word means. Getting it wrong can look sloppy. The internet is full of advice that can be hard to follow.
So, let’s get to the bottom of it. We will show you the truth. It is not a complex secret. The “shocking truth” is a very simple and clear rule. Once you learn it, you will never get it wrong again. This guide will help you feel sure every time you type the word.
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Do You Capitalize Bible? The Simple Rule That Changes Everything
Okay, let’s get right to it. Here is the main rule that answers the question. It is a two-part rule. It is all about what you mean when you use the word.
- YES, you capitalize “Bible” when you talk about the special, holy text of Christianity. Here, you are using the word as a proper noun. A proper noun is the official name of a special thing.
- NO, you do not capitalize “bible” when you talk about a physical copy of the book. Here, you are using the word as a common noun. A common noun is a general name for an object.
That’s it. That’s the big secret. It is one word, with two different uses, and two different rules. The key is to ask yourself, “Am I talking about the holy text as a whole? Or am I talking about the physical book in someone’s hand?”
When to Capitalize “Bible”: Treating It Like a Specific Name
Think about it like this. You use a capital letter for the title of a special book, right? You would write The Lord of the Rings, not the lord of the rings. Proper nouns are special names of people, places, or things. They always get a capital letter.
When you talk about the holy book of Christianity, you are talking about a special title. The Holy Bible is the name of that book. So, when you use the word “Bible” to mean that special text, it is a proper noun. It needs a capital “B.” This is the core of the answer to Do You Capitalize Bible.
Do You Capitalize Bible When Referring to the Christian Holy Book?
Yes, you always do. When you say, “The Bible teaches us to be kind,” you mean the special religious text. You are not talking about the physical book on your desk. You are talking about all the writings as a whole.
Here are some more examples:
- She finds great comfort when she reads the Bible.
- The pastor read a part of the Bible.
- People translated the Bible into many languages.
In all of these cases, “Bible” is used as the special name of a holy text. So, it gets a capital letter.
What About Adjectives Like “Biblical”?
This is another great question that uses the same rule. Yes, you use a capital for words that come from proper nouns. For example, we capitalize “American” because it comes from the proper noun “America.” The same is true for “biblical.” Because it comes from the proper noun “Bible,” the word “Biblical” should also be capitalized.
Here are some examples:
- He is taking a class on Biblical history.
- The movie has a theme of Biblical size.
- She is an expert in Biblical languages.
Using a capital “B” for “Biblical” shows you mean something related to the specific Holy Bible.
When NOT to Capitalize “bible”: Just Another Book on the Shelf
Now let’s look at the other side. A common noun is the general name for a person, place, or thing. For example, “man,” “city,” and “book” are all common nouns. When you use the word “bible” to mean the physical object—the book itself—it is a common noun. It does not get a capital letter.
Think back to my teacher’s red marks. I had written something like, “The hero carried his worn bible with him.” I was talking about his special, physical copy of the book, not the holy text as an idea. So, it should have been a lowercase “b.”
Do You Capitalize Bible When It’s Used Generically?
No, you do not. This is where it gets a bit hard, but the rule stays the same. If you are not talking about THE special Holy Bible, but just any bible, it stays lowercase. This often happens when the word is plural. It also happens when it has “a” or “an” in front of it.
Here are some examples:
- He made a promise on a stack of bibles. (This means more than one physical book.)
- The hotel room drawer had a bible in it. (This means one copy of the book.)
- I have three bibles: a study bible, a family bible, and a small travel bible.
In each of these cases, the word means a physical book.
What About Idiomatic Expressions? Do you capitalize bible in this case?
This is another spot where people often get confused. Sometimes, people use the word “bible” in a non-religious way. They use it to mean a book that is a full guide on a certain topic. In this case, it is a metaphor and a common noun. So, you do not capitalize it. The answer to do you capitalize bible in these sayings is a clear no.
Here are some examples:
- That cookbook is my kitchen bible.
- For a car lover, that repair book is the bible.
- He read the firm’s style guide like it was the bible.
In these sentences, the speaker is not talking about the Holy Bible. They are just using the word “bible” to mean “the best guide.”
Let’s See What the Experts Say About This Rule
You do not just have to take my word for it. Every major English Cite the Bible Chicago style guide agrees on this rule. These guides are the “bibles” for professional writers and editors. Citing them helps show that these rules are standard.
- The Chicago Manual of Style (CMOS): This is a style guide many people in publishing use. The CMOS states that “Bible” should be capitalized when you mean the holy book of Christianity. It also says to capitalize “Biblical.” But it agrees that you should use a lowercase “b” for it in a general or idiomatic sense. Good sources like the Purdue Online Writing Lab (OWL) explain these rules.
- The Associated Press (AP) Stylebook: This guide is used by most reporters and news groups in the U.S. The AP Stylebook also says to capitalize “Bible” when you mean the Holy Scripture. This shows that the rule is standard in many fields. You can find many grammar sites that explain AP style, like Grammarly.
- The MLA Handbook: Students and scholars in the arts use this guide. Just like the others, MLA says “Bible” should be capitalized when it means the special religious text. This shows that in school, publishing, and news writing, the rule is the same.
The Shocking Truth Revealed: It’s All About Clarity and Respect
So, what is the big secret? The “shocking truth” is that there is no shocking truth. The rule is not a secret plan or a mystery. It is a simple, clear rule of English grammar. It is made to help us write in a clear and respectful way.
When you capitalize “Bible” for the Holy Scripture, you show you know it is a special, titled work. This is a sign of respect. Using a lowercase “bible” for a physical copy or a saying is not rude. It is just correct grammar. It helps your reader know what you mean. The full answer to Do You Capitalize Bible is about showing this difference.
The question of why is the book of nephi not in the bible and the question of capital letters are very different. But they both show how much history and meaning can fit into a single book, or even a single word. One is about history, and the other is about grammar. But both ask us to look a bit deeper.
So, the next time you write that word, just ask yourself the simple question: “Am I talking about the holy text or a physical book?” Once you have your answer, you’ll know for sure if you need to use a capital letter.
FAQ – Do You Capitalize Bible

Why is it important to capitalize ‘Bible’ correctly?
Correct capitalization shows respect for the religious text and ensures clarity in your writing by distinguishing between the proper noun and the common noun or metaphorical use.
How can I remember when to capitalize ‘Bible’?
Remember that ‘Bible’ is capitalized when referring to the holy text as a proper noun, and not capitalized when talking about a physical book or using it as a common noun, such as in idiomatic expressions.
Are there rules in style guides about capitalizing ‘Bible’?
Yes, major style guides like the Chicago Manual of Style, AP Stylebook, and MLA Handbook agree that ‘Bible’ should be capitalized when referring to the religious text, and ‘biblical’ or related adjectives are also capitalized.
When do I not capitalize ‘bible’?
You do not capitalize ‘bible’ when referring to a physical copy of the book or using the word generically to mean any book or guide on a certain topic, as it then functions as a common noun.
Should I capitalize ‘Bible’ when referring to the holy scripture of Christianity?
Yes, you should capitalize ‘Bible’ when you are talking about the special, holy text of Christianity, as it is a proper noun and the official name of a specific religious book.