As Paul says in verse 24, Christ crucified is the "power of God".
1 Cor 2:2, "For I decided to know nothing among you except Jesus Christ and Him crucified." Again, didn't Paul know that Jesus had risen from the dead? Paul preaches Christ crucified because an empty cross has no power.
However, I don't agree with of the time that you are presented with a verse that "proves" the Church wrong, either: a) the verse has been taken out of context, or b) the verse simply doesn't say what they are trying to make it say.
#2) And this flows right from #1, the Catholic Church can be defended from the Bible better than any other Christian faith tradition can be.
Truths which the articles of our Faith rest upon and build upon. Rule #4: Always view a question about your Faith, or even an attack on your Faith, as an opportunity - an opportunity to share the truth.