 You can, although that causes problems later, but technically you can go and renounce it and then you can go back to church on Sunday or the next day and be okay again. But Perpetua and many other people refused to do this and felt that that would be a betrayal and they would prefer to die in the name of their faith. We need to introduce Tertullian just because his name comes up when you know about Perpetua today. Who was he?