Mark Horne has a helpful post on why he is not a Roman Catholic. An excerpt:
- Idolatry is a huge sin and praying through icons (whether 3d or 2d) is idolatry. I cannot possibly engage in such a practice, allow anyone in my guardianship to do so, or excuse such a thing, without falling into rank unbelief.
- Necromancy is almost as huge a sin and praying to the departed saints is necromancy. See #1 above. People raised thinking bigamy is Christian may be true Christians, but people who know better are living in sin and without hope of eternal life unless they repent of such behavior.
- The way some Roman Catholic constituencies provide ministry opportunities for defectors from Protestantism is, of course, tempting–but it can hardly count as anything more than thirty pieces of silver if #1 and #2 hold. If one must be marginalized and impoverished in the Protestant world due to sectarian sins, well, God has called many Christians and their families to far worse martyrdoms.
- Claiming unity can be achieved by everyone else joining one’s own denomination is exactly the sect spirit that is so loathsome in many Protestant groups, and it gains no more attractiveness in Rome.
While Mark’s honesty will offend many who justify idolatry by appealing to John of Damascus, we have an opposite example in the Internet Monk’s interview with Bryan Cross, someone who has made that plunge into idolatry. I don’t know why these issues are never raised in these ecumenical interviews. Many Protestants still seem to assume that justification is the core issue between us and Rome, while in fact idolatry is and always has been one of the central concerns of the Reformation, if one that is often ignored today.