Have the Dead Sea Scrolls altered the Bible?

Answer

I assume that Question intends to ask whether the Scrolls have demonstrated alterations in the Bible, since it is infeasible for the Scrolls themselves to alter the Bible.

There are two ancient texts for the Hebrew Bible, or Old Testament - the Septuagint (LXX) and the Masoretic text. The LXX is an early (3rd-2nd centuries BCE) Greek translation of the Hebrew Bible and was used as a source by the Gospel authors, as well as the primary early text for the Christian translators. The Masoretic text was compiled as the definitive version of the Hebrew Bible, around the seventh century CE. There are many differences between the two texts, some quite significant but many of a less important nature.

The Dead Sea Scrolls, discovered between 1947 and 1956, include several books of the Hebrew Bible, and in most cases support the accuracy of the Masoretic text. They also include previously unknown material about Daniel. However, the new material may prove nothing more than the natural tendency of traditions evolve over time.

It is intriguingly possible to understand some non-biblical scrolls in the collection as proto-Christian. If proven to be true, this could impact our understanding of the origins of Christianity and the Gospel accounts.

In summary, the main biblical impact of the Scrolls is to help answer questions about which version best reflects the original, when the Septuagint and the Masoretic text differ. The knowledge gained from the Scrolls does not give reason to alter the Bible as we know it.