A federal appeals court is hearing arguments Tuesday morning over a Texas law that would require public school classrooms to display the Ten Commandments.
The case is before the Fifth U.S. Circuit Court of Appeals and is being considered alongside a similar challenge to a Louisiana law.
Opponents of the Texas requirement argue the mandate violates the Constitution by promoting religion in public schools.
State attorneys have defended the law by saying the displays are meant to reflect historical influences on American law, not religious instruction.
The appeals court is not expected to issue an immediate ruling, and any decision could be appealed to the U.S. Supreme Court.