In Deuteronomy 30:1-10 Moses speaks to the people of God about the day when they will be brought back from exile. When this happens God will circumcise their hearts. Throughout Old Testament history the people of God constantly turn away from him, but Moses promises a day when God will sovereignly put faithfulness into the hearts of his people. This passage becomes the foundation for much of what the prophets say and is foundational for the message of the bible. The story of the Bible is the unified story of God’s sovereign grace to sinners.