Have you interviewed there? They LIKE people to interview. The gcc legacies will definitely play there, along w/ your Christian (cap C, btw ... that's one you don't want to miss on your app for gcc) background will be a plus. Your math scores belie your interest, but frankly I'm not sure how much their admissions function would align (and penalize) your academic possibilities w/ your apparent lower scores. You don't say if you're a boy or girl. If a girl, could be tougher. Were I a betting money-changer? I think you are "in." But remember ... take mine nor any others as gcc gospel. They can do some really weird things in the name of Christianity. Also, if you're from Montana instead of Monongahela, that would be a BIG plus. P.S. DO NOT walk on the grass when you visit. Automatic rejection!
And when they ask you your favorite beer, answer is ... root and/or birch!
And about the sin thing? Always vote "nay! no way!"