Emma is the pastor of Zana Community Church in Kampala, Uganda which was planted in 1997. In 1996, Emma founded Westminster Theological College and Seminary with the purpose of training church leaders and Christian teachers in Uganda and Africa at large — especially in the reformed churches. The college has students from Uganda, nine other African countries, and even from as far away as the Philippines.
Emma also oversees a farming project and Fish Ponds that feed over 600 Children with sustainable farming at the Zana Christian school and Community Children's Center, which he and his wife run. The Zana Church is also planting churches within their community to reach Ugandans for Christ through discipleship and training. Emma was born in one of the poor parts of Uganda to Roman Catholic parents and came to know the Lord while attending high school in 1980. He came to study on scholarship in the United States at Reformed Bible College in Michigan, returning to Uganda in 1986. His ministry started with church planting and training church leaders until the Lord opened a door for him to attend Westminster Theological Seminary in California for Graduate Studies (1994-96). Emma also received a Doctor of Ministry degree from Miami International Seminary. He and his wife Allen have three children.