My advice is to follow your desire- there's no point in spending four years of your life studying a subject you are less interested in, just to get a job. If you start your studies, a clearer sense of direction will probably emerge. It's true that any liberal arts degree will be sufficient for many jobs. A lot of positions in business will actually welcome an unusual major, for the sake of diversity of experience and skills- Several of my fellow anthro grads have found work that way.
If you do desire to serve the church, there are many ways to do this besides being a minister. You could work overseas in one of the volunteer ministries, work for a church as an accountant or associate in minstry, any number of things... If you have a chat with an admissions person or guidance counselor at whatever school you plan to apply, they would be happy to suggest a number of avenues of service.