Soon he was ordained an Elder, and he began preaching the gospel just as he knew he would. This was the message God wanted him to share with others. John helped convert Mary Fielding to the Mormon Church. She was to become the wife of Hyrum Smith, and mother of Joseph F. Smith, apostle of the Lord and sixth President of the Church of Jesus Christ of Latter-day Saints. Joseph F. Smith would also be John’s counselor when John was President of the Church.
From his childhood, John knew God had a purpose for him. Because of this knowledge, John lived close to Heavenly Father so he would be able to find the truth. As he listened to the Holy Ghost, studied carefully and prayed, John learned that the message of the gospel was true. Even though he would have many trials and hardships in his life, he never doubted.