Silently, Otello enters, with a sword. He kisses his wife three times; she awakens. Otello asks her if she has prayed tonight; she must die, and he does not wish to condemn her soul. She asks God for mercy, both for her and for Otello. Otello accuses her of sin, saying that he must kill her because she loves Cassio. Desdemona denies it and asks that he summon Cassio to testify to her innocence. Otello says that Cassio is already dead. Desdemona, horrified, pleads for mercy, but Otello tells her it's too late and strangles her (Otello, Desdemona: "Diceste questa sera le vostre preci" / "Have you said your prayers tonight?").