ahem, no the Catholic Church is a creation of man. The Church is built upon the infallible Word of God, the Bible.
For if the Bible is not the infallible word of God, but a creation of man, who decides what is Gods word and what is mans word?
The doctrine of all denominations is but a creation of imperfect men with an imperfect understanding of God. In some cases it is written not to further Gods kingdom but to further the power and lusts of the flesh.
Please take this in the spirit in which it is given, which is to say not antagonistically; I believe that you, too, love the Lord. The Catholic Church is His creation. It does have fallible men within it. But it is Christ’s bride. It is likewise true that the Holy Bible is the Word of God. But the Church was built by Our Lord. If you have a moment, a better explanation can be found here:
(http://www.scripturecatholic.com/the_church.html)
Again, driftdiver, respectfully, I must disagree with you on this. I still wish a Blessed Sunday, though.
Protestants? Martin Luther? You're begging the question as to what constitutes Scripture, and who/what has the authority to determine it.