Catechesis: Intro FC, SD

For these controversies are not mere misunderstandings or semantic arguments, where someone might think that one group has not sufficiently grasped what the other group was trying to say or that the tensions were based upon only a few specific words of relatively little consequence. Rather, these controversies deal with important and significant matters, and they are of such a nature that the positions of the erring party neither could nor should be tolerated in the church of God, much less excused or defended.—SD Intro: 9