Ephesians 2:1-4
John Stott (1921-2011) writes in his commentary on Ephesians:
"Paul first plumbs the depths of pessimism about man, and then rises to the heights of optimism about God. It is this combination of pessimism and optimism, of despair and faith, which constitutes the refreshing realism of the Bible. For what Paul does in this passage is to paint a vivid contrast between what man is by nature and what he can become by grace."