Hava Nagila developed in Jerusalem in the early twentieth century, when musicologist Abraham Zevi Idelsohn wrote Hebrew lyrics for a traditional Hasidic melody. The words come from Psalm 118 and urge listeners to rejoice and be glad. From synagogue and community celebrations the song spread through recordings, weddings and bar mitzvahs around the world, becoming the best known musical shorthand for Jewish festivity. Its circle dance and accelerating tempo helped it cross into films, sports events and online edits, where a brief excerpt still signals instant celebration.