The Colorado Supreme Court on Monday declined to hear the case of a baker who refused to make a wedding cake for a gay couple.

The decision leaves in place a lower court ruling against Denver-based Masterpiece Cakeshop owner Jack Phillips.

In 2012, Phillips refused to consider baking a cake for Dave Mullins and Charlie Craig. The men married in Massachusetts and wanted to buy a cake from Phillips for their Denver reception. Phillips said that serving the couple would violate his religious faith. Colorado at the time recognized gay and lesbian couples with civil unions, not marriage.

The couple sued, saying that Phillips' faith does not give him a right to discriminate.

The men were represented by the American Civil Liberties Union (ACLU).

“The highest court in Colorado today affirmed that no one should be turned away from a public-facing business because of who they are or who they love,” said Ria Tabacco Mar, staff attorney for the ACLU’s LGBT Project, who argued the case. “We all have a right to our personal beliefs, but we do not have a right to impose those beliefs on others and harm them. We hope today’s win will serve as a lesson for others that equality and fairness should be our guiding principles and that discrimination has no place at the table, or the bakery as the case may be.”

Attorney Nicolle Martin, who represents Phillips, told the AP that she is considering an appeal to the U.S. Supreme Court.