EWTN Catholic Q&A
The word catholic church in bible
Question from MARY on 10-23-2012:

Where in the bible does it say that the catholic church is the church jesus founded?

Answer by Richard Geraghty on 10-28-2012:

Dear Mary,

When Christ told St. Peter that he was the rock on which Christ would found his Church. As you know, Protestants interpret this passage differently.

Doc. Geraghty