''To err is human; to forgive, divine'' is quoted by-

'To err is human; to forgive, divine.' is quoted by Alexandar Pope, from his An essay on criticism

Alexander Pope is a Mock Heroic Poet.
His famous quotations:
- Charms strike the sight but merit strikes the heart.
- A little learning is a dangerous thing.
- To err is human, to forgive is divine.
- An honest man is the noblest work of God.
- The proper study of mankind is man.
- Fools rush in where angels fear to tread.
- Hope springs eternal in the human breast.

Source: The Oxford Dictionary of Quotation.