1. In a large stockpot heat the olive oil over medium-high heat. Sauté the onions, garlic, and pepper flakes until soft.
2. Pour in the clam juice and the white wine and bring to a boil. Add the clams, shake the pot to distribute evenly, add the parsley and cover. Cook until the shells open, 7 to 10 minutes. Remove and discard any unopened shells.
3. To serve, divide and place clams in 8 serving bowls. Ladle the broth over the clams and serve hot with the bread.