The Free Church of Scotland is the general name given to groups of worshippers who broke off from the official Church of Scotland. All these Scottish churches are Presbyterian, based on the ideas of John Knox, and do not have permanent leaders such as Popes or bishops. The breakaway groups, like the Church of Scotland itself, base their beliefs on the Bible, but differ in how it should be understood. As a general rule, all the Wee Frees read the Bible in a fairly literal way, more so than the Church of Scotland.