US Supreme Court justices are secular clerics of the highest order. The Constitution is their guiding document—a set of basic commandments—and textual analysis is their practice, used to dissect thorny moral issues. All share a reverence for the law: It would be impossible to get the gig without a religious devotion to its rule.
Still, a shift in the religious backgrounds of justices in recent years arguably represents a dramatic change in American culture. There is no religious test for Supreme Court justices, nor any requirement that the bench represent the makeup of the nation. Yet it’s notable that court has gone from all-Protestant origins to now mostly-Catholic, with one third of the bench Jewish.