"be a staunch devout believer in sth" in German to be a staunch/devout believer in sth. fest an etw. glauben Detailed translations for "be a staunch devout believer in sth" to be a staunch/devout believer in sth. to be a staunch/devout believer in sth.(also: to have unshakable faith in sth.) fest an etw. glauben