Rabbi Daniel Cohen was shocked to find anti-Semitic symbols such as swastikas spray-painted on the walls of his Denver synagogue last weekend, but the community's response surprised him as well.

The graffiti was especially hurtful because the messages were sprayed the night before Purim (search) — a time during which Jewish people remember past suffering. The congregation's Holocaust survivors who came to temple the next morning were horrified.

When more than 350 people of varying faiths showed up to help remove the symbols from the synagogue's walls, Rabbi Cohen was overwhelmed.

"We thought there would just be 20 or 30 people that would come but we had people that came from Mass, people that came instead of their service, to say this is the way we serve God," he said.

Click here to watch a report by Fox News' Carol McKinley.