‘Fools rush in where angels fear to tread.' Who uttered this line?

Some of the quotes of Alexander Pope from An Essay on Criticism are-
- 'Fools rush in where angels fear to tread.'
- 'To err is human, to forgive, divine.'
- 'An honest man's the noblest work of God.'

Alexander Pope is called Mock Heroic Poet.
Famous epics of Alexander Pope is 'The Rape of the Lock'.
His famous works are-
- An Essay on Criticism,
- The Dunciad,
- The Imitation of Horace,
- An Essay on Man,
- Letter to Gay.

Source: The Oxford Dictionary of Quotation.