I swore never to be silent whenever and wherever human beings endure suffering and humiliation. We must take sides. Neutrality helps the oppressor, never the victim. Silence encourages the tormentor, never the tormented. Sometimes we must interfere. — Elie Wiesel 
As Christians, we worship the God of Abraham, Isaac, and Jacob; we worship a Jewish Messiah; we seek to live in the same Holy Spirit that spoke through Isaiah, Jeremiah and the other Jewish prophets of old. At it’s best, our faith is completely incompatible with anti-semitism. Sometimes we must interfere. In the face of the recent rise in anti-semitism, we must take sides, we must speak up.
 Elie Wiesel in his December 10, 1986, Nobel Peace Prize Acceptance Speech. Found in Elie Wiesel, Night, translated by Marion Wiesel (Farrar, Straus and Giroux, 2006) Kindle.