Really not understanding the response...”all have sinned” is a statement of fact with in Scripture. Either all is still all or we pick and choose...
I have learned to rely on Scripture as the source of truth instead of people that I respect since they are still people and are part of the “all have sinned” group (as I am). If what anybody teaches goes against Scripture I will reject their teaching.
We have white, black, brown, and grey sheep that we shear for the wool and also raise some that go into the freezer each year.
In my opinion we all pick and choose. Viz: Let "all have sinned" mean that the set of all humans is a subset of all sinners.
Jesus was fully human,that is, Jesus is a member of the set of all humans.
So Jesus is a member of the set of all sinners ->Jesus has sinned.
Now that may seem artificial, but how shall we show the intelligent Martian that when we say, "No.Jesus was also the Son of God; He united in one person human nature and divine nature," we are not picking and choosing.
So my citing of "This is my body." We can say He meant something like "This represents my body," but who gets to make the call? So when Chaguito saith:
What is 'basic dogmatic teaching' if not ideology?
my answer is yes indeed. It is, however, an extensively stated (if sometimes bewildering) ideology. But if one wants to do the scholarship, one can track it down and discern the order (or attempt at order) in it.
To us, on the one hand, the claim that every plowboy can understand Scripture is weakened by the competing claims of Calvinists, Lutherans, Arminians, dispensationalists, Jehovah's Witness, etc.
While, on the other hand, we find in Acts 15:28 a precedent for an Ecumenical Council (or maybe a synod) pronouncing, in the name of the Holy Spirit, a matter of faith (Gentiles don't need to become Jews to become Christians) and of morals (avoid illicit sexual intercourse.)
So despite the manifest and sometimes disgraceful earthen nature of the vessels through whom this teaching comes, we find it authoritative, rather than the ideologies of others.
I do not mean this to be argumentative but expository. I am not defending our thought so much as trying to lay it out clearly.
INDEED TO THE MAX.
However, when the Vatican rubber 'Bible,' dictionary, & histories are in use . . . one can pick about any fool thing imaginable and label it 'sound doctrine.'
Right . . . about as sound as a sand castle in a hurricane.