Rabbi Ira Budow, director of a Hebrew academy in the Philadelphia suburbs, said he visited the holy location last month in full Giants gear just before the team's victory over the Green Bay Packers, the New York Post reported Wednesday.
"When they completed that Hail Mary pass, I said, 'Hey, it worked,'" Budow said.
Archbishop Timothy Dolan of the New York Archdiocese said he and his colleagues are also supporting the Giants.
"We love them because they're a very good team," Dolan said. "And also because they are very good to the archdiocese."