David used to be a gangster and frequent client of prisons for many years. The care and love from a persistent Christian lady generated a 180 degrees change in his life. Through his personal experiences in Christ, David has devoted his life in missionary work and theological education. He has obtained 2 doctorial degrees in education and theology respectively, been the president of seminary and awarded the “outstanding performance” in Taiwan. Up till now, Rev. Lu has been to more than 60 countries, spreading his personal story of change, helping prisoners, young people, parents, and workers in both social and educational areas.