In a final message delivered from beyond the grave, Hollywood icon Rob Reiner delivered a stirring plea for “resilience” to a global gathering of Holocaust survivors at Jerusalem’s Western Wall on Thursday. The pre-recorded video, filmed just weeks before he and his wife were fatally slain in their Brentwood home, was an emotional centerpiece of the annual International Holocaust Survivors Night. In his final address, Reiner spoke of his aunt, who was in Auschwitz, and his wife Michele, whose “whole family died there,” with the exception of her mother. Reiner — an outspoken liberal activist — didn’t shy away from...