Justin Taylor summarizes four waves of change for which John Piper is praying:
- Putting world evangelization into the passions of a new generation.
- Weaving the dark thread of hell back into the fabric of our compassion.
- Blowing away misperceptions about what is needed in missions.
- Persuading pastors that a passion for the global glory of God is good for the saints at home.
Read an explanation of each here.