I have read, before, that there are about 12 verses/passages which have been given an infallible interpretation. I assume this is what you are referring to?
I’m not sure that this is even properly/specifically Taught by the Church, but those passages are probably, and nevertheless, interpreted with a high degree of authority.
I will try to find the resource I have read them in the past when I have more time. But for now, I would like to address your question.
The Church has relied on these passages to establish and support the ministry entrusted to her by the Lord. These passages in particular support most all doctrine. To contradict them in teaching and practice is to do the same to the whole of Scripture. It is not necessary to interpret all passages, but to look at Scripture as a whole and complete message. What is important is that we do not pit Scripture against Scripture.
Also, many passages can convey more than one concept, and support more than one article of faith. These few passages you are referring to are not necessarily restricted to one particular interpretation, but the one confirmed by the Church is the primary message and any other conclusions from them cannot contradict what the Church has manifested.