Mariano Avila has served in the Seminary of the National Presbyterian Church as a professor, academic dean, and president, and was a professor of Biblical Studies at the Comunidad Teológica de México. He was Academic Dean of the Facultad Latinoamericana de Estudios Teológicos (Miami, Florida), and is a member of the Academic Council of PRODOLA, the doctoral program (Ph.D.) for professors, leaders, and pastors in Latin America. For several years he was coordinator of urban ministries for community transformation and theological adviser for World Vision México and was an advisor for the Spanish ministry of CRC Publications. Mariano was a member of the Biblical Translation Committee (International Bible Society) that produced the Nueva Versión Internacional and also he is one of the translators of the Traducción en Lenguaje Actual (United Bible Societies), a translation in contemporary Spanish from the original languages. He has translated books from English and Portuguese into Spanish and has published a good number of articles and books. His most recent publications in Spanish are Entre Dios y el Cesar: Líderes evangélicos y política en México (Between God and Cesar: Evangelical leaders and politics in Mexico), and Carta a los Efesios. Comentario para exégesis y traducción (Letter to the Ephesians. A Commentary for exegesis and translation).