The division occurred because of a continuing difference over liberty of conscience (as defined in the Westminster Confession of Faith), which came to a head over the attendance of Lord Mackay of Clashfern at a Requiem Mass which formed part of the funeral of a colleague, former Lord Justice ClerkLord Wheatley. As Mackay was Lord Advocate for Scotland, it was expected that he attend the funeral of a deceased member of the judiciary; Wheatley was also a friend of Mackay. However, Mackay was also an elder in the Free Presbyterian Church, and its leadership found his attendance intolerable, as it regards the Catholic Church as spurious and the Mass as idolatrous. As a result, Mackay was suspended from office as an elder. Some in the church disagreed with this punishment and a split ensued, not only over the Mackay affair but also the ongoing issue of freedom of conscience. Those who formed the APC believed that liberty of conscience was not being given sufficient place in the Free Presbyterian Church, and that the disciplinary action taken by the Free Presbyterian authorities against Lord Mackay was inappropriate.[2]
They also asserted that the Free Presbyterian Church failed to put into practice the Westminster Confession of Faith's teaching on Communion of the Saints. "The APC seeks to re-assert this communion as expressed in the Westminster Confession of Faith itself." The APC made various unsuccessful attempts at encouraging unity among similar churches in Scotland (Free Church of Scotland, International Presbyterian Church, Free Church (Continuing), Reformed Presbyterian Church). Since 1989, the majority of its congregations have merged with Free Church of Scotland congregations.
Doctrine
The Associated Churches website states: "We believe that it is correct to allow Christians to make their own decisions on matters that are not fundamental to the faith."
The church's beliefs "are stated in a confession that is catholic, Reformed, and biblical, and which states the historic convictions of the Church of Scotland"[3] the Westminster Confession of Faith.[4]