Former Republican vice-presidential candidate Sarah Palin spoke at a gospel music convention in Louisville Thursday.Several thousand attendees filed into Freedom Hall for the event, which was part of the annual National Quartet Convention. Palin's speech was mostly a collection of anecdotes about faith, but she occasionally worked in jabs at the media and political commentary."Free market principles work. When it comes to national security issues, like Reagan used to say, we win, you lose. Simple things like that. I don't know why that's considered extreme, those positions I have and those whom I choose to endorse and help support as we head into these midterms where we can take it back, we can take back our country," she said.Palin later she believes in God-mandated American Exceptionalism, and implored the audience to stay close to their faith."It's in times like these that we must proudly stand up and speak out for what we believe in, not be ashamed of the gospel but remind America that that is what we need," she said.Before the conference, Palin addressed a fundraiser for Republican Senate candidate Rand Paul. That event was for donors only and drew several dozen protesters.