Assuming this claim were true, which it isn't, the modern Israelis have genetically nothing in common with the Jews of the old testament. They don't have the same culture, religion, language or genetics.

Revived Hebrew seems to be a child of Ancient Hebrew? Judaism seems to have a continuation? I can't say I know the genetic situation of a while country, but it seems unlikely.

Maybe you've more to add, some sources to convince me?