The earth is the Lord's, says Psalm 24. God owns it, in other words. Is it time to take this seriously, as God's word does? If so, it means that "secular" is an illusion, and our traditional division of the world into "sacred" and "secular" is false. This work looks at the major consequences for Christians when we see the earth as sacred and realize the stewardship that follows. We are called as Christians to take a prophetic role in forming a worldview which understands that we live as sacred beings in the Lord's sacred space.