If you're referring to the fact that "this quiz" has been made before, I don't believe that it has been. I do know that a quiz of countries whose names begin with saint, or whose name contains some form of the word saint exists, but this quiz is different. For example, is Dominican Republic on any of those quizzes? I don't think so.
Why do we say “Sanctus Sanctus Sanctus” during mass before the consecration. Now don’t get my wrong, I definitely see your point. But the term saint often refers to those humans that are now in heaven. Jesus fits the bill. In fact, he isn’t just a saint, he’s THE Saint!
Israel, if we’re counting Old Testament.