Masterpiece Cakeshop owner Jack Phillips is now asking the U.S. Supreme Court to hear his case after a lower court ruled he was wrong in refusing to make a wedding cake for a same-sex couple by citing his religious beliefs.

His attorneys filed the petition Friday.

“No one — not Jack or anyone else — should be forced by the government to further a message that they cannot in good conscience promote,” said attorney Jeremy Tedesco in a statement released by the non-profit legal organization Alliance Defending Freedom. “And that’s what this case is about.”

Last month the Colorado Supreme Court decided it would not hear the case of the Lakewood baker.

Mark Silverstein, the legal director for American Civil Liberties Unit of Colorado, said the organization intends to file a response to the petition.

“As we’ve argued and the courts have consistently and correctly ruled in this case, everyone has a right to their religious beliefs,” Silverstein said. “But business owners cannot rely on those beliefs as an excuse to discriminate against prospective customers.”

In 2012, Charlie Craig and David Mullins were turned away by Phillips when they requested a custom wedding cake. Mullins and Craig planned to marry in Massachusetts and wanted a cake to celebrate in Colorado. Phillips refused, citing his religious beliefs.

In December 2013, administrative law Judge Robert N. Spencer said offering the same services to gay couples as heterosexual couples did not violate Phillips’ rights to free speech and does not prevent him from exercising his religious freedom.

The appeals courts later upheld that ruling, stating that the Colorado Anti-Discrimination Act does not compel the cake shop owner to endorse any religious views. Instead, it prohibits Phillips from discriminating against customers based on sexual orientation.

Tedesco said Friday afternoon that many similar cases are circulating the lower courts throughout the country.

Tedesco said the only similar case that the U.S. Supreme Court has been asked to hear is one about a photographer in New Mexico who refused to photograph a gay couple. The court did not take up that case, but Tedesco said that wasn’t a surprise.

“Our view is it’s only a matter of time before the Supreme Court takes one of these cases,” Tedesco said. “It’s a really crucial issue of First Amendment law.”