God has given his church the Great Commission as his plan to see disciples made among all the peoples of the earth. However, there are currently around 3.2 billion people today who do not have access to the gospel. Tragically, unless something changes, they will live, die, and go to hell without ever hearing about how they can be reconciled to God. In this message recently given at the Together for the Gospel conference, David Platt looks at a number of Scripture passages to urge us to consider how we might work for the spread of the gospel to the hardest to reach peoples and places. Rather than focusing inward and dividing over less important issues, we need to be united in our mission around the gospel—for the glory of God and for the sake of those who have never heard.