"Throw a Christian into a river, and he will come up with a fish in his mouth." So begins Pastor Wurmbrand's If Prison Walls Could Speak. The central thesis of this book is that trial strengthens faith, builds character, and gives way to hope. These sermons were written by Wurmbrand during his imprisonment in Communist Romania, which persecuted the Christian Church and sentenced Wurmbrand to three years of solitary confinement and later to twenty five years of further imprisonment for his continued leadership of the underground church. These years of persecution did not break Wurmbrand; rather, they yielded strength, faith, and hope, and would ultimately lead Wurmbrand to found the organization Jesus To The Communist World, which later became The Voice of the Martyrs, which aids persecuted Christians throughout the world.