My current interest is in materials for small group meditation, prayer, and reflection. With thanks to those who have created these resources, here are some helpful links I have found:
The Marianist Social Justice Collaborative (MSJC) offers a resources under Praying for Social Justice. Two that I found particularly relevant to economic justice were Prayer to End Poverty and Prayer in a Time of Economic Distress.
The Religious Action Center of Reform Judaism, offer some prayers and quotes.
A perspective on Abolishing the Extremes of Poverty and Wealth from the Bahá’í tradition includes an overview and some quotes.
The United Church of Christ (UCC) offers Bible passages on economic justice and links to relevant prayers.