Israel, is the nation in which God fulfilled the Abrahamic Covenant through his son Isaac. It is named after Issac's son, Jacob. Israel is the primary nation of the Bible, around which redemptive history revolves. A majority of major people in the Bible originate from Israel.
Throughout the Bible, Israel sins against God many times and is conquered by enemy nations as punishment, only to be sent a rescuer. The ultimate rescuer of Israel was Jesus Christ whom was God in fully human and deity form.