A federal judge ruled Tuesday that a Louisiana state law requiring the Ten Commandments to be displayed in all public school classrooms is unconstitutional.

The Supreme Court’s approach toward religion in schools has been shifting, adding to uncertainty about legislation such as Louisiana’s.

Lawyers for the state of Louisiana are asking a federal appeals court in New Orleans to immediately block a judge’s ruling ordering education officials to tell all local districts that a law requiring schools to post the Ten Commandments in classrooms is unconstitutional.