Here, Christian apologist Sean McDowell has a wonderful discussion with Dr. Thaddeus Williams who is also a professor at Biola University. Williams has a new book coming out this Fall called Confronting Injustice without Compromising Truth: 12 Questions Christians Should Ask About Social Justice. I found this discussion to be quite helpful. As Williams notes, social justice is not the Gospel. But before you rush to judgment, make sure you watch the entire discussion.