When the UN partitioned the Middle East in 1948, Israel was given quite a bit of the Land she now has, but the Arabs declared war right away & managed to capture Biblical Judea and Samaria. Jordan annexed it immediately and began to call it the "West Bank" (of the Jordan River).
When Israel recaptured its own land in subsequent wars, the media still insisted upon calling it the West Bank instead of Judea & Samaria. It is the entire center of the country.
Arafat has persisted in claiming that it is Palestinian land & has created so many problems for us, that some of our political leaders began to fall for the big lie: land for peace. They began turning over bits and pieces of this land to Arafat, so now the map looks like swiss cheese. There are many Jewish villages next to Arab villages, so it is impossible to separate the two peoples, especially in places like Hebron, where there has been a Jewish presence for the past 4000 years. (Not all Jews were dispersed from the Land)
The Gaza Strip is a coastal area along the Mediterranean in the southern part of Israel. There are Jewish villages there, too. It is the area in which the sea people of the Bible called the Philistines inhabited. They were overthrown and destroyed long ago. The modern Palestinians are not related to them in any way other than being a thorn in the side of Israel. Arafat tries to make a connection with the Biblical nation of Philistines, but then he also claims that Palestinians were the first Christians. How confused can he get!?
The west Bank & the Gaza Strip are included in the given borders of the Biblical Land of Israel.
You should have a map in front of you when you are trying to figure this all out - maybe we will make one and put it on the web site.