They are the people of Israel, God’s chosen children. They have seen the glory of God, and they have the agreements that God made between himself and his people. God gave them the law of Moses and the right way of worship and his promises.
Remember that in the past you were without Christ. You were not citizens of Israel, and you had no part in the agreements with the promise that God made to his people. You had no hope, and you did not know God.