Garrie F. Williams, president of Trinity Power Ministries, is a New Zealander by birth who has lived in the United States since 1982. His Spirit-filled ministry seminars, prayer seminars, and revival meetings are bringing new life to congregations in many parts of the world. He has served as a church pastor, evangelist, college professor, and ministerial director, and has been chairman of a number of international small group conferences and Holy Spirit fellowships. He is the author of How to Be Filled with the Holy Spirit and Know It and Give the Holy Spirit a Chance.