Supreme Court Justice Samuel Alito told a Catholic legal group that the United States' dedication to religious liberty is being put to the test.

Alito told the Catholic lawyers and judges on Wednesday, "A wind is picking up that is hostile to those with traditional moral beliefs," according to the Associated Press.

"We are likely to see pitched battles in courts and Congress, state legislatures and town halls," Alito said in New Jersey, according to the AP. "But the most important fight is for the hearts and minds of our fellow Americans. It is up to all of us to evangelize our fellow Americans about the issue of religious freedom."

Alito, a Catholic, reportedly also read from his dissent in the Supreme Court's same-sex marriage case and said he predicted those who opposed the high court's decision would be cast as bigots.