You, mistress,
That have the office opposite to Saint Peter,
And keep the gate of hell!
– William Shakespeare
Othello, Act 4, Scene 2. Raising his voice to Desdemona, Othello brands her the gate-keeper of hell. He believes that she has been unfaithful to him and refuses to accept her protestations of innocence. These lines are an allusion to the Bible, which tells us that Saint Peter was the gatekeeper of heaven.