Phoenicians are closest relatives of Jews. From what I hear Hebrew and Phoenician languages/alphabets are very similar.
I believe the Phoenicians spoke a Semitic language. And -- as I learned in a linguistics course in grad school some 20 years ago -- the alphabet (as opposed to other writing systems such as the Chinese pictograms or Japanese syllabary) was invented only once: if the Phoenicians didn't develop it (in which case the developers are lost to history), they at least must be given credit for spreading it. Obviously, it went through changes and adaptations as it spread.
Ok this is news to me. Would not one need the DNA of a Phoenician in order to discover where the Phoenician would be today???
This DNA science is very very very interesting.
The languages/alphabets are. Hebrew, Phoenician and Greek are all very similar. Arabic came later but is very similar to Hebrew as well.
There was a theory a while back that Phoenicians were Jews, but that was quickly disproven. They were pagan, but some close to Israel converted to Judaism.
Genetically, I don't know if there is a difference between Jews and Phoenicians but I would imagine that there is. Still, we shall wait and see with that.