Scripture mentions neither the word Roman nor Catholic in connection with Christ’s Church.

The Catholic Answers

It is not a question of a name, but of the thing. And the universal spiritual society now known as the Catholic Church is most clearly described in Scripture. Christ said clearly that His Church would be one fold under one shepherd, the fold embracing all nations, the shepherd being St. Peter, and his successors. Either the Catholic Church is the one Christ established, or His Church has altogether ceased to exist.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty