Although the download of the Kindle Bible for does not come pre-indexed, the first time or two that you open the file the Kindle will index it.  I purchased the Kindle Bible to use with the Kindle app on my iPhone, and have found that it works well on that device.  As pointed out by other reviewers, the instructions that Amazon provides at the beginning of the Bible's text will walk you through the searching process, and they are a (short) must-read.  This is a fully workable translation of the Old and New Testaments and the searching feature works very well, provided that you follow the instructions.  What you do not receive for the exceptionally low price of this download are the detailed explanations and annotations that make publications such as The New Oxford Annotated Bible what they are.  However, as an easily accessible, very low-cost Bible that's available instantly on your Kindle or iPhone, Amazon.com's Kindle Bible is highly recommended.