This book by Tracey Kidder tells the story of a man named Deo that escaped the genocide of Burundi to live as a one of the homeless of New York City. It's a great, inspiring story. But the story the stuck with me was the story of a Catholic school where the Priest/School Master insisted that the Hutus and Totsies treat each other as brothers. When the miltia came, they demanded to know who who the Totsies were. They wouldn't say, and the milia tried to kill them all. (Killing 40 out of 140 students.)
I couldn't help but think of Galations 3:28 -
There is neither Jew nor Greek, slave nor free, male nor female, for you are all one in Christ Jesus.
They were willing to pay the full cost that Christ paid to live out this truth.