John G Lake was originally from Ontario, Canada. He was from a large family, which was continually affected with illness. At the age of twenty-one, he became a Methodist minister; however, he chose to enter the business world instead of accepting a church ministry.
 
Lake was a very industrious businessman and started two newspapers before beginning a very successful career in real estate. Early in his career, Lake's wife, whom he deeply loved, fell ill with a life threatening illness. Having a lifetime of suffering and bereavement behind him, he refused to accept this.
 
He took the radical step of taking 'his brother who had been an invalid for 22 years to Chicago see John Alexander Dowie . In a matter of just moments after healing ministers laid their hands on him, he was healed -- he got up and walked out! Next, the Lakes took their 34-year-old sister who was dying from breast cancer. She had been operated on five times and had to be carried on a stretcher. She too was healed! These Healings of the Lake's drew other people to them requesting prayers for healing, which altered the direction of Lake's life and ministry.
 
Lake Maintained realationship with many of the leading figures of his day including railroad tycoon, James Jerome Hill, Cecil Rhades, Mahatma Gandhi, Arthur Conan Doyle and others. By the time he left for the mission field he walked away from a $50,000 year Salary, as well as his seat on the Chicago Board of Trade.