Complex sentence: The 1958 church constitution "affirmed the acceptance into full membership of Christians who transferred membership from other denominations", which lead to unsuccessful attempts in the early 1970s to oust Pullen Memorial, along with twelve other churches, from the State Baptist Convention.
Split into simpler sentences: The 1958 church constitution "affirmed the acceptance into full membership of Christians who transferred membership from other denominations". That stance led to unsuccessful attempts in the early 1970s to oust Pullen Memorial, along with twelve other churches, from the State Baptist Convention.