I begin my sermon around 27 minutes into the video; text is the last part of John 16:23f. Of course, I start out with a goof up, saying Jesus wants us to pray in the Father's name. Thankfully, I got on track. :-)
The best thing the Church can do in the face of any social injustice is to stay on mission. Sin is the reason for injustice, and the only one with the power to deal with it is Jesus. The wisdom of God is greater than the wisdom of man: "make disciples of every nation." That's God's program for the peace of this world (remember the angels' message to the shepherds) and for the ultimate resolution of all things.