Paul is urging us to look to God. He's pointing us toward our heavenly hope. He's reminding us that God's plans are for blessing, good, and eternal joy. He invites us into that hope.
That doesn't mean we don't mourn for the lost. It doesn't mean we don't seek to bring the message of Jesus to more and more people. Quite the contrary. We rejoice in God's work in the lives of more and more people, and do whatever we can to help make the world come alive around us. His message of Good News enlivens that hope and sustains us in that effort.
