After outlining the blessings and curses for obedience and disobedience, Moses urges the people to choose life and blessing. Yet, God knows the hearts of the people. He knows they will turn their back on him as soon as they enter the Promised Land and experience prosperity. God tells Moses about this, and even has him write a song that will be used as a damning witness against the people and their sin. When we look at it, this is us. We are dead in our sin and desires, with no desire to serve God. Sure, we want his blessings, but not him.
Yet, in the midst of this, God shows grace. In Deuteronomy 30:6 God says that he will circumcise the hearts of those who turn back to him after their exile. When this happens the people will love him and walk in obedience to his ways. This is what Jesus promises us in regeneration. When we are brought to life God gives us a new heart that is wholly capable of loving & serving God. God promised this to Israel and it is our promise today.
Has the Lord circumcised your heart?