The American Civil Liberties Union asked the Supreme Court on Monday to review its challenge to a Texas law requiring public school classrooms to display the Ten Commandments, setting up another potential battle over religious expression in schools.

The ACLU represents parents from several religious backgrounds who argue the Republican-backed law violates the First Amendment’s Establishment Clause.

“As a rabbi and parent, forcing a Christian version of the Ten Commandments on children in every classroom is particularly upsetting,” Joshua Fixler, a Jewish parent from Houston involved in the lawsuit, said in a statement.

Texas lawmakers approved the measure last year, requiring public elementary and secondary schools to prominently display the Ten Commandments in classrooms. The law specifies the wording and minimum dimensions of the displays.

The 5th U.S. Circuit Court of Appeals sided with Texas and allowed the requirement to stand, prompting the ACLU to appeal to the nation’s highest court.

“In doing so, it not only decided these cases in a way that conflicts with this Court’s precedents but also deepened confusion among the lower courts over how this Court’s Establishment Clause jurisprudence applies,” the ACLU argued in its petition.

Texas is among several Republican-led states that have moved to restore displays of the Ten Commandments in public schools, arguing that the document has historical significance to American law and culture. Similar measures have generated legal challenges elsewhere, including an Arkansas law that a federal judge ruled unconstitutional.

The Supreme Court is not required to hear the Texas case and rejects most appeals it receives. The justices could consider whether to accept the dispute after beginning their next term this fall.

The case arrives as the court’s 6-3 conservative majority has taken a more protective approach toward religious liberty in public education.

In 2022, the court sided with a Washington state high school football coach who was disciplined for praying on the field after games.

Last year, the justices also sided with Maryland parents who sought to remove their children from classroom instruction involving books with LGBTQ themes, ruling that the school district’s policy burdened parents’ religious exercise.