Born in 1941 in Orozko (Euskadi) has been Professor of Theology and History of Religions at the Pontifical University of Salamanca (1973-2003). Since 2003 is dedicated to the particular research and teaches courses in various parts of Spain and America. Among his works on biblical themes stand This is the Man (1997), The Apocalypse (1999), Party of bread, wine festival (1999), Biblical Anthropology (2006) and Dictionary of the Bible (2007). On the religious factor has written: Man and woman in Religion (1996), The religious phenomenon. Foundations of Religion (Trotta, 1999), Monotheism and globalization. Moses, Jesus, Muhammad (2002) and Words of Love (2006). Of life and church reform system treat their books, freedom, church. Institutions of the New Testament (Trotta, 2001), Violence and dialogue between religions (2004) and Religious violence in the history of the West (2005).