Because of the shortage of documents, it was easy to build a case for a charlatan origin for manuscripts like the messianic prophecies of Isaiah. When the Dead Sea Scrolls were discovered in 1947, with the messianic prophecies in tact scholars now had documents much older than the claims of the skeptics. The Hitite nation described in the Old Testament was claimed by some scholars to have never existed, and was used to ridicule those who claimed that the Biblical manuscripts were accurate and true. Today archeological evidence has totally vindicated the bible on this issue. Recently evidence has been found verifying the Biblical records of King David's rule, and many new digs and examinations of documents like the remainder of the Dead Sea Scrolls will offer new data.
Many scholars question the story of the Exodus.
The role of the Essenes is suggested as a major player in Christianity's development by others. Anyone can suggest that something in the Bible might be erroneous, but the lesson of history is that new discoveries support the biblical narrative and help us understand the first two suggestions more fully. Be careful that a claimed contradiction is not based upon a modern human assumption . This is probably the most common source of error in looking at skeptic attacks on the Bible. The classic example is the question of the age of the events described in the first chapter of Genesis.