Various human subspecies (Neandertal, Erectus) left Africa many hundreds of thousands of years ago.
Our subspecies, Homo Sapiens Sapiens, originated about 200,000 years ago in Tanzania with the Sandawe population. One branch of this population crossed the sea from Ethiopia to Arabia about 90,000 BCE. These were the first Semitic people.
One branch of Semites went to Canaan (the Israel/Palestine region west of the Dead Sea). These were the Canaanite Semites. One branch of these were the Hebrews. This is why Hebrew is classified as a Canaanite Semitic language.
There was little interaction between different populations at this time because population density was extremely low.
As time went on, the rest of the world was colonized and population densities rose. Global warming led to rising sea levels about 10,000 BCE, concentrating populations even more and leading to the Neolithic revolution, agriculture, warfare, civilization etc. Eden, which is just east of Kuwait, is flooded and Sumerians have to flee the water. They write down the first stories that become Genesis thousands of years later.
~2,000 BCE Various chariot-riding Indo Europeans begin to establish empires and conquer other cultures. These cultures used the Swastika to symbolize their mighty chariot wheels.
1,792 BCE Hammurabi
~1,500 BCE Egyptians and Indo-Europeans (Akkadians, maybe Hittites) begin to war with one another in Canaan. Indo Europeans introduced composite bows and chariots to Egypt, and Egypt eventually learned to master these new weapon systems.
(Elsewhere, European iron age begins at this time. Germanics begin slaughtering Celts with the iron weapons Celts taught them how to make).
1,475 BCE Egypt conquers Canaan and enslaves the Jews.
1,392 BCE Moses is born.
~1,300 BCE Egypt wars with the other chariot cultures.
1,274 BCE Battle of Kadesh between Egypt and Hittites. Biggest chariot battle ever.
1,271 BCE Death of Moses.
~1,200 BCE Indo European "Sea People" begin to harass the civilizations of the Eastern Mediterranean. They conquer Cyprus and destroy the Minoan civilization. They harass Egypt too.
1,190 BCE Trojan War. The Greeks were probably "Sea People" and the Trojan War just one of many "Sea People" invasions of Africa and Asia from Europe.
~1175 BCE Indo European "Sea People" (including Philistines) comprehensively defeated by Ramses III, who fought them in "Djahi" (the eastern Mediterranean coast) and at "the mouths of the rivers" (the Nile delta), recording his victories in a series of inscriptions in his mortuary temple at Medinet Habu. These "Sea People" then settle the Gaza Strip and establish the Philistine state, now known as the Gaza Strip part of Palestine, possibly as a client state of Egypt. At this time the Philistines controlled five cities known as the Pentapolis of which Gaza was the south-westernmost.
1150 BC: Final Egyptian withdrawal from southern Canaan.
~1,000 BCE David and Goliath, first Kingdom of Israel, Hebrew originates as a written language, Torah written after this time.
Philistines quickly absorb Canaanite culture and become "Semiticized". Despite their non-Semitic roots they become very Semitic in culture due to interaction with other powers in Canaan.
Rome and Parthia are the next regional superpowers. Then AFTER Muhammed dies in 632 CE, the Arabs expand, and Palestine became Arabized.
Now, AFTER you've read all that, go back and look at the Old Testament (Genesis especially). It will make more sense.