The U.S. Supreme Court has ruled unanimously for a postal worker in Pennsylvania in an important religious liberty dispute, over now far employers should go to accommodate faith-based requests in the workplace. Gerald Groff, a Christian mail carrier, from Pennsylvania, asked the court to decide if U.S. Postal Service could require him to deliver Amazon packages on Sundays, which he observes as the Sabbath. His attorney, Aaron Streett, argued in April that the court should revisit a 50-year-old precedent that established a test to determine when employers should make accommodations for their employees' religious practices. In ruling for the government...