What does the Bible say about true Israel?

The Bible indicates that not all who are descendants of Abraham are true Israelites. In Romans 9:6-8, Paul clarifies that it is not the children of the flesh who are the children of God, but rather the children of the promise. True Israel consists of those who have faith in Christ, as reiterated in Galatians 3:7, where it states that those who have faith are children of Abraham. This concept emphasizes that spiritual lineage through faith is what truly defines God’s chosen people, as conveyed through the work of Christ.