The Catholic Church puts the traditions of men ahead of what the Bible clearly teaches. As a result, many of its teachings and practices are contrary to Scripture. It took me years to learn this, and it was heartbreaking because I loved and trusted the priests I knew, and I believed whatever they taught me. I used to be a very faithful Catholic, but Jesus and was my primary focus, and I loved to read the Bible. And eventually God opened my eyes.
Ecumenism seems plausible because Catholics use words in a way that outsiders don’t understand. For example, for Catholics, “grace” is something that can be “merited” (i.e., earned by doing good works). And it can be given to objects such as holy water, in addition to being given to people. Because Protestants don’t understand what Catholics really mean, they think that they have a lot of things in common, when in reality they don’t. (Click to Article)