If thou dost slander her and torture me,
Never pray more; abandon all remorse;
On horror’s head horrors accumulate;
Do deeds to make heaven weep, all earth amazed;
For nothing canst thou to damnation add
Greater than that.
– William Shakespeare
Othello, Act 3, Scene 3. Othello warns Iago not to slander his wife’s reputation by calling her a whore if she is not. He is demanding "ocular proof" that Desdemona that been unfaithful, which Iago has suggested. Otherwise he threatens Iago with damnation. Both heaven and earth are personified as having the ability to weep and be amazed.