Conversing with Different Denominations

Not too long ago I sat down with a fellow Christian who’s a practicing Catholic and we got into a discussion on what defines our faith. When I asked her this question she replied, “truth, good and beautiness.” It made me curious that she answered with that rather than saying Jesus Christ and His sacrifice on the cross. Questioning her answer further she revealed that she does believe in Jesus Christ as her Lord and Saviour but my impression after our discussion was that her Catholicism is more important than what should make up the whole of our belief as Christians.

I was raised a Protestant and I’ve always struggled conversing with anyone of other denominations. I would guess it’s because of my lack of knowledge in their practices and the reason why they practice them.

I’ve always been curious and have never tried to avoid or shun fellow followers of the faith and their practices because in our modern times unity in diversity is imperative.

This has lead me to some questions hopefully to find answers that can point in the right direction,

  1. How do I approach someone who’s more concerned about their denomination than what should be at the core, the thing amongst many differences, that we have in common which is Jesus?

  2. Are there any resources that I can use to educate my mind on Catholicism (or any denomination really) to help me better conversations to consider and respect their beliefs without looking ignorant?

I have a lot of Catholic friends and I’m not looking at how to convert them from their practices but rather redirect them back to Christ because it seems he’s not the first thing that comes into their minds. I couldn’t care less on how they practice their beliefs but as long as at the core of the message remains unaffected is what’s of utmost importance.



Josue, as a former Catholic who had an adult conversion to Evangelical Christianity, and whose whole family is still Roman Catholic, I think I can give you a few pieces of advice. First, there are some good books to get a hold of just to get clarity on what are the doctrinal differences between Roman Catholicism and Evangelical Protestantism.

It is also important to know that for the last 25 years there has been a very positive and, I think, theologically sound movement in the US amongst bible-believing Catholics and Protestants called “Evangelicals and Catholics Together” or ECT. This movement was started by the late Chuck Colson (a great apologist, true saint of the church, and dear colleague of Ravi Z.), and his friend Fr. Richard John Neuhaus. Both are dead now, but the movement lives on and, I think, is bearing much fruit. Here is the most recent book by men and women working out of that ecumenical project:

The good thing about interacting with these authors and theologians is that they are all committed Christians, i.e. committed to a “mere Christianity”, while also holding to their own theological traditions. Therefore, where there is actual and genuine agreement, it is embraced, but where there is still serious intellectual and dogmatic disagreement, those disagreements are not whitewashed in favor of some kind of superficial unity.

Another resource to recommend is the magazine “Touchstone” put out by the fellowship of St. James. This is a great resource, edited and authored by Roman Catholics, Evangelical Protestants, and Easter Orthodox theologians, professors, and writers. Again, ecumenical, but without being naive about the serious nature of our differences.

Since I have led classes on this issue in particular, and because it is very personal to me as well (again, my whole family is Catholic) there is much I could say. I’ll close out this post with a few macro-level thoughts, but we can continue to interact on this if you like.

  1. The main area of disagreement between Catholics and Evangelicals has been and will continue to be the issue of authority. On the historical Protestant view, the doctrine of Sola Scriptura, or scripture as the final arbiter of truth on all issues regarding the Christian faith, fundamentally distinguishes Protestant denominations from Roman Catholicism. Roman Catholicism has two additional sources of authority: the teaching magisterium with the Pope as its infallible head (when the Pope makes infallible pronouncements), and the sacred oral traditions of the church. Those other authorities are ultimately the source of many of the additional Catholic teachings, some of which are not found in your Bible, that you might encounter in your conversations with Catholics.

  2. This is a critical time for both the Roman Catholic Church and, as you know, evangelical churches. The Catholic Church is in a major crisis, not only due to horrific priestly abuse crimes, but also due to changes being made to the catechism at the highest levels of religious authority (i.e. the Pope and his consortium of bishops). This is really a time of turmoil in the Catholic church, and I have many friends and family members concerned about what is going on. It is a good time to encourage faithful Catholics that even when there is trouble in the Church, they still have the Gospel of Jesus Christ to hang on to. So, I think you are doing the right thing in not necessarily challenging some of these extra-biblical Catholic traditions, but redirecting them back to the main truths found in the Scriptures; and the main Truth that Jesus died for our sins. That is something that cannot be lost, no matter who is sitting in Rome on St. Peter’s chair, or how many wolves have crept into the sheep fold.

Hope this helps.

in Christ,


@josueaparicio @anthony.costello already summarized some of the differences regarding teaching, but how do we reach out to our Catholic neighbors? I think there are a few key points to recognize:

  • there is a wide diversity of beliefs among Catholics - some Catholics are truly walking with Jesus
  • Catholics also trust the Bible, so the best approach may be to study the Bible with them and point them to Jesus rather than questioning Catholic doctrine

Here are a few resources you may find helpful. The Lord Jesus bless you as you witness with your friends.


I remember watching this video when I had similar questions on Roman Catholicism:


nicely said without compromising faith and walk in God … :slight_smile:
Bless ya for sharing that