The Levantine coast, around Gaza.
It was called British Mandate of Palestine or simply Palestine.
The city of Jericho was located in Phillistia during prior to the conquest of Canaan. It is located 5-7 miles north of the Dead Sea, and 5-7 miles west of the Jordan River. It was located in the border region of Israel/Judea during the Kingdom Years, Samaria/Judea border region, and was a Judean city during the time of Christ. It is one of the oldest continually inhabited cities in the world, and is now the city of Ariha, located in the West Bank (Palestine) in the present day state of Israel.