After his missionary work in Thailand, De la Fuente continued to be involved in Christian ministry in the Philippines with the National Council of Churches in the Philippines and the Ecumenical Center for Development and in the United States with the City Chapel and in various capacities with the
American Baptist Churches of New Jersey. (42) He received his theological education from the College of Theology, Central Philippine University, and the University of Edinburgh, Scotland, where he earned a Master of Theology degree.