Who came first, the Arab or the Jew?

Apparently there is evidence that Hebrews did actually come westward out of Mesopotamia at around the time it is claimed that Abraham did. They settled everywhere along the way as far as Egypt at least. The Hebrews who settled in Canaan at some time started calling the place Israel, and each tribe had it's own area fenced off. The southern tribe called their patch Judah.

The northern tribes were very prosperous and highly populated. The models for the Biblical David and Solomon probably come from here. Judah was relatively poor and thinly populated. When the Assyrians conquered the northern tribes they didn't bother with the Judeans, they weren't worth the effort.

Foolestroupe raises a good point. The Biblical histories of all three religious disciplines are retrospective and backdated. As if every 500 years someone has to jump up and say "Lo & behold, that's now all bullshit, this is what's what!"

The word Jew comes from the word Judah. I don't know where the Arabs came from, when they came, or what defines them. I've often wondered. I suspect modern Jews and Arabs descend from a common ancestor as recently as 4,000 years ago. If not, they certainly descend from one a little further back, and their argument is one of degree rather than definition.