Moses is supposed to have written the Pentateuch. Moses died around 1400 BC near the time when the Israelites were to enter the land of Canaan. The Exodus took place around 40 years earlier. So if Moses died around 1400BC, and he wrote the Pentateuch, then the Bible has to be at least 4 centuries older than even this latest estimate.
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from the article: Deciphered etching sheds new light on Bible's origin