Praying for "Moral Rebirth" in America?

One Christian organization is calling on believers to gather at city halls across the nation to pray for a “moral rebirth” in America. I do not find anywhere in Scripture where we are called to pray for “moral rebirth”. Indeed, there can never be a “moral rebirth” apart from the spiritual rebirth of individuals through the gospel of Jesus Christ. It is this for which we must pray and work as we seek to reach both political leaders and regular citizens with good news of the gospel.