The Old Testament tells the story of God's chosen people, the Hebrews, who were later known as Israelites or Jews. Sometime around 1800 B.C., God made a covenant with a man named Abraham to make of his descendants a great nation. The first few of these descendants migrated to Egypt to escape a famine in their own land. After many generations they had greatly increased their numbers but had become enslaved to the Egyptians. God sent a great leader and prophet, Moses, to lead the Hebrews out of captivity and into the Promised Land of Israel. During this time God gave Moses the Ten Commandments which are still considered the basis for a moral life by both Jews and Christians.