It is funny that the Papists cling to man made doctrines, or will base huge parts of their faith on the fragment of on verse, yet are so quick to dismiss the sufficiency of Scripture. (Which by the way is presented in a far more clearer way than the assumption of Mary, the Pope and other Papist abominations.)
It’s a cult mindset.
I think anytime they make a semblance of an appeal to a Scripture passage to support a dogma it is not much more than lip service to give an appearance of Scriptural support. Yet, we can go back to the writings of some of the first Christian leaders and find exhortations to their disciples to NOT accept anything they taught if they couldn't back it up by sacred Scripture. More than a few FRoman Catholics have asserted they don't even need to rely on God's word since to do so would be "heretical". Imagine that!?