One of America’s most famously Christian businesses is amassing a vast collection of Biblical antiquities. The problem is some of them may have been looted from the Middle East. In 2011, a shipment of somewhere between 200 to 300 small clay tablets on their way to Oklahoma City from Israel was seized by U.S. Customs agents in Memphis. The tablets were inscribed in cuneiform—the script of ancient Assyria and Babylonia, present-day Iraq—and were thousands of years old. Their destination was the compound of the Hobby Lobby corporation, which became famous last year for winning a landmark Supreme Court case on...