Dear AskACatholic.com,

I just received an answer from a Catholic to a question I had that seriously disturbed me.
I came to believe Catholicism was The Way because it claimed infallibility in official doctrines,
but from him, I heard that was not the case.

The Catholic told me that the only doctrines that were infallible were the two times two different Popes spoke on Ex cathedra, one included the Assumption of Mary, but on extremely important doctrines, such as the doctrine of the Holy Trinity, the Church Councils that decided them were as fallible as any other churches view, including those in Protestant denominations.

• Is the Catholic right, and the Church Councils are not infallible like the Pope's Ex cathedra, or
• Is the Catholic wrong, and Church Councils are right and infallible on official Church doctrine, including the doctrine of the Holy Trinity?
  

Please don't sugarcoat the answer. Just tell me which one is right.

Anonymous