The U.S. Supreme Court agreed on Friday to hear a bid by religious parents to keep their children out of classes in a Maryland public school district when LGBT storybooks are read, the latest case to come to the justices involving the intersection between religion and LGBT rights.

The Supreme Court will hear parents’ challenge to a Maryland school policy barring opt-outs from LGBT-themed lessons, citing religious rights concerns.

The Supreme Court has agreed to hear an appeal from parents in suburban Washington who want to pull their children from elementary school classes that use books featuring LGBTQ characters.