"One of the longstanding arguments for why the main body of biblical literature was not written down in anything like its present form until after the destruction and exile of 586 B.C. is that before then there was not enough literacy or enough scribes to support such a huge undertaking.

But if the literacy rates in the Arad fortress were repeated across the kingdom of Judah, which had about 100,000 people, there would have been hundreds of literate people, the Tel Aviv research team suggests.

That could have provided the infrastructure for the composition of biblical works that constitute the basis of Judahite history and theology including early versions of the books of Deuteronomy to II Kings, according to the researchers."