I find this infallibility issue interesting. Now of course, some would argue there's a difference between infallible and inerrant, but I'm digressing slightly here.
I've seen some argue that the original Scriptures that the writers of the Bible scribed are inerrant, but man's feeble attempt to translate them aren't. OK, seems plausible, but it also seems like an "easy out" to explaining away errors.
After all, it's not like Paul gave us a list when he said that all Scripture was profitable for teaching (II Timothy 3:16). However, one must clearly believe that if God is a God of divine intervention who works out things to His will, surely He would have forced any teachings in the Bible that were contradictory to Him to be omitted. The problem, with this thinking, I believe, is that the Catholic and Protestant faiths are vastly different, and oppose each other. Ultimately, one of them is wrong, and a few of the issues (How Salvation is "earned" for instance) are absolutely central to the Christian faith.
If God is a God of divine intervention, why wasn't one side stopped? Clearly, if Catholicism was wrong, they were allowed to go unchecked in their predominance for centuries. If the Protestants are wrong, the Reformation should have never attained the success it achieved, or so it seems.
These are my random "musings" if you will after a long day, so if it sounds like I'm debating myself, I probably am. My sincerest apologies.