<p> This project offers a resource for the training of lay preachers from the first world who have participated in mission trips to the developing world of El Salvador. The project further enhances the experience of the mission trip by giving mission participants the tools to proclaim the gospel in light of their mission experience. Chapter One explores the unique political, economic, religious and cultural realities of the mission territory of El Salvador. Chapter Two examines the spiritual history of the missionaries themselves within the culture of the United States, exploring the various spiritual movements that have shaped their nation. Liberation Theology and its impact on the people of El Salvador and the United States will be discussed in Chapter Three. Its profound impact on lay spirituality and their understanding of the scriptures will also be examined. Chapter Four outlines four preparation meetings for missionaries as well as the spiritual agenda for the mission trip to El Salvador. In Chapter Five, eleven key points for effective preaching will be offered in a description of a workshop to be given to returning missionaries to enable them to proclaim what they have seen and heard on their mission trip. A qualitative and quantitative analysis of the effectiveness of this workshop as well as sample homilies will also be presented in this chapter. The project concludes with reflections on the benefits of missionary preaching for both the missionaries and their sponsoring communities.</p>