Who said Polluted by crimes and torn by the bitterest remorse where can I find rest but in death?

The quote "Polluted by crimes and torn by the bitterest remorse where can I find rest but in death" is attributed to the character of Macbeth in William Shakespeare's play "Macbeth." This line reflects Macbeth's deep inner turmoil and guilt following his violent actions in his quest for power. It encapsulates his despair and the psychological consequences of his ambition and moral corruption.