Macbeth Act 4

Macduff arrives at the English court and meets with Malcolm. Malcolm, remembering his father's misplaced trust in Macbeth,he confesses that he is a greedy and sinful man who makes Macbeth look like an angel in comparison. Macduff despairs and says that he will leave Scotland forever if this is the case, since there seems to be no man fit to rule it.  Malcolm is convinced of Macduff's goodness and reveals that he was merely testing him, he has none of these faults to which he has just confessed.