Prepare a large Soup pot or Dutch oven; Add the oil. Cook the onion, celery, and garlic over medium heat until softened.
Add tomatoes, chicken, chili powder, cumin, salt & pepper. Simmer until chicken is cooked through. Stir in the tomato paste, beans and chicken broth, bring to a boil, then lower heat and simmer for 20-30 minutes, stir occasionally.