President Reuven Rivlin spoke out against the stabbing attack at the Jerusalem gay pride parade on Thursday.Speaking during an event to celebrate 30 years of the Israeli opera, Rivlin said, "We came together today for a festive event, but the joy was shattered when a terrible hate crime occurred here in Jerusalem, the capital of Israel."Rivlin said that "people celebrating their freedom and expressing their identity were viciously stabbed. We must not be deluded, a lack of tolerance will lead us to disaster. We cannot allow such crimes, and we must condemn those who commit and support them. I wish the injured a full and speedy recovery."