Born in Azul, Argentina, on October 29, 1950, he attended the Buenos Aires Bible Institute of the Christian and Missionary Alliance from where he graduated in 1975 with a Th.B. He came to the U.S.A. in August of 1976 to attend Bethel Theological Seminary in St. Paul, Minnesota, where he obtained a M.Div in 1980. During his time at Bethel he served as a minister in an independent Hispanic congregation in Minneapolis.

In 1980 he entered Princeton Theological Seminary, from where he graduated in 1981 with a Th.M. Back in Argentina he was ordained in 1985 by the Reformed Church and was appointed to serve in two different congregations of the Presbyterian Church, first as interim minister and later as senior pastor. From 1983 to 1989 he completed his Th.D. in ISEDET (Instituto Superior de Estudios Teológicos) in Buenos Aires. Invited by the Church of Scotland, he spent nine months in New College, University of Edinburgh, doing post-doctoral research.

From Scotland he came to the U.S.A. where he served as an interim minister in a UCC congregation in Joliet, Illinois and as a bilingual teacher in two different school districts in the Chicago area. He was called in 1995 to Garrett-Evangelical Theological Seminary as an assistant professor of New Testament Interpretation and director of the then Center of Hispanic Ministries. He was promoted to associate professor in June of 2000 and granted tenure in October of 2001. In May of 2010 he was promoted to the rank of Full Professor.

Apart from many articles and essays, written both in English and Spanish, he has published four books: The Parousia and Its Rereadings. The Development of the Eschatological Consciousness in the Writings of the New Testament, Peter Lang, 2001, Apocalipsis (Revelation), Augsburg Fortress, 2008, Evangelio de Marcos: Comentario para Exegesis y Traducción (Mark: A Commentary for Exegesis and Translation), United Bible Societies, 2008, and Jesus, Disciple of the Kingdom. Mark’s Christology for a Community in Crisis. Eugene, Oregon: Pickwick Publications, 2014.

In December of 2006 he released his first music CD, Still a Dream, with original music and lyrics based on the poetry of Arab and Jewish children. In October of 2010 he released a second CD, Beyond the Gate, this time with lyrics inspired by the poetry of Arab, Jewish, and Argentine children.

He is married, and has two sons ages 30 and 27.