No evidence ( Psalm 19 v 7 v 11 ff )

In Andrew Marr's book,' A history of the world,' he throws doubt on the bible record of Israel's 400 years  time in Egypt,because he says there is no archaeological evidence, I also heard on the radio how the same was true of King David,no  archaeological evidence. Consider this that for many years doubt has been thrown on the biblical account of the existence of the state of Edom,they dismissed it as been a myth.But now archaeological has been found that such a state did exist, the biblical history account should not  be dismissed ,it really happened.The existence of the Jews is very strong and compelling evidence of the historical events recorded in the bible, as being true.