Contemporary Catholic social teaching originates around the time of the publication of Rerum Novarum (Pope Leo XIII, 1891). It is important, however, to recognise that the Christian concern for social justice and care of the poor and marginalised is rooted in biblical and historical traditions (Birge, 2009; DeBerri, Hug, Henriot, & Schultheis, 2003). In the Old Testament this tradition can be discerned in the holiness code (Lev 17-26) and the commitment to the care of the stranger (Exodus 22:21; 23:9). In the New Testament, the tradition can be discerned in gospel demands for social justice, love of neighbour and correct use of material possessions (Lk 12:13-21; 12:33-34; 14:33).