The Supreme Court sided on Friday with a group of Maryland parents who argued that preventing them from opting their children out of LGBT curriculum infringed on their religious freedom rights. The 6-3 ruling from the high court marked the latest win for religious liberty advocates handed down by the justices this term.

The U.S. Supreme Court is expected to rule on Friday in a bid by Christian and Muslim parents in Maryland to keep their elementary school children out of certain classes when storybooks with LGBT characters are read in the latest case involving the intersection of religion and LGBT rights.