In the film Amadeus, aging composer Antonio Salieri plays some of his music on the piano for a visiting priest. The embarrassed priest confesses he doesn’t recognize the tunes. “What about this one?” Salieri says, playing an instantly familiar melody. “I didn’t know you wrote that,” the priest says. “I didn’t,” Salieri replies. “That was Mozart!” As viewers discover, Mozart’s success has caused deep envy in Salieri—even leading him to play a part in Mozart’s death.

A song lies at the heart of another envy story. After David’s victory over Goliath, the Israelites heartily sing, “Saul has slain his thousands, and David…