So what should an atheist do if being sworn in for a testimony in court? The swearing in question has "...nothing but the truth, so help you God." Can you say,"Yes, I'll tell the truth, but I don't believe in God."?
I go to court with my clients every week. I see the swearing in every time. I always thought it was swearing to God. But... Now I understand that it is swearing or affirming. Swearing to God... or affirming to truth if not religious.
I believe you have the right to ask for a secular swearing in question that does not mention any god. Maybe Google knows????