You may have noticed that we have two commentary sets that are nearly identical in title: Expositor’s Bible Commentary (12 Volumes) and Expositors Bible Commentary – Revised Series (13 Volumes)

Having more options is good for you—if you know what they are and why they will enhance your study of God’s Word. So, this blog post will explain just that: what the Expositor’s Bible Commentary is, what the differences are between the two, and how it will help you study deeper.


Both commentary sets have a strong evangelical influence while also drawing from a broad diversity of churches, including Anglican, Baptist, Brethren, Methodist, Nazarene, Presbyterian, and Reformed.

The original Expositor’s Bible Commentary (12 Vols) was compiled between the years of 1976-1992 with 78 different authors contributing. This version is a staple of seminary and college libraries and pastors’ studies worldwide.

The Expositor’s Bible Commentary – Revised Series is a 2012 update to the original that includes the work of 56 different authors – 30 of whom are new. This version is the most up-to-date.


The original and the revised editions include the following content:

  • Comprehensive introductions
  • Short and precise bibliographies
  • Detailed outlines
  • Insightful expositions of passages and verses
  • Overviews of sections of Scripture to illuminate the big picture
  • Occasional reflections to give more detail on important issues
  • Notes on textual questions and special problems, placed close to the texts in question
  • Transliterations and translations of Hebrew and Greek words, enabling readers to understand even the more technical notes

Both sets use the NIV for its English text, but also refer freely to other translations and to the original languages. Each book of the Bible has, in addition to its exposition, an introduction, outline, and bibliography. They also include a balanced and respectful approach toward marked differences of opinion.


In the Olive Tree Bible App all of this content is easily accessed in the Resource Guide found in the split window. No matter which commentary you are using they both follow along with the scripture in your main window to give you easy access to expositional commentary, charts, outlines and more.

How does this affect you? It makes your study of God’s Word a smoother process. You don’t have to flip pages or have your desk full of open books. Instead, our app serves you the material you need, that is relevant to the passage you’re studying. We want to help you steward your time well!

Here’s a few screenshots of how the resource looks in our app.

Each number indicates relevant entries for the passage

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Notes are just a tap away

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Charts and outlines are easy to use

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You can learn more about the Expositor’s Bible Commentary (12 Volumes) and the Expositors Bible Commentary – Revised Series (13 Volumes) by visiting our website or by reading this “look inside” article.

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