What does the church say about social justice?

Learn to do good; seek justice, rescue the oppressed, defend the orphan, plead for the widow. Isaiah 1:17

Defend the weak and the fatherless; uphold the cause of the poor and the oppressed. Psalm 82:3

The duty of making oneself a neighbour to others and actively serving them becomes even more urgent when it involves the disadvantaged, in whatever area this may be. “As you did it to one of the least of these my brethren, you did it to me. CCC 1932

The Gospel promises of God’s love, of salvation in Jesus Christ and of unchanging moral values still have the power to guide and to give life…the church must lead the way in reaching out to the elderly, to suffering children, to the poor and others excluded from the mainstream of modern society. Pope Francis, April 2005

If you want peace, work for justice. Pope Paul VI