When I contemplate how God has brought us His simple truth by The Spirit as we see in Romans 10:9, it makes me wonder what He thinks about man's creeds and what man adds or removes from His word that was already settled from the beginning? What price will man pay for this? The temptation of Jesus by the devil's twisting of God's word comes to mind.
Man takes the simplest of things God has said and adds layer after layer of complexity by adding or removing to the meaning and twisting it into erroneous doctrines that cannot be unraveled from men's wisdom. Men would do well to "clean the slate" of their heart and start afresh with the wisdom from above instead of continuing down a road of likely destruction. I hope God's mercy will prevail to help us in such cases, or we are doomed.