What I write is for Catholics, it's Catholic doctrine, the truth from God. If after 2000 years, the Catholic Church does not have "the understanding of God", then you might as well go back to your crack, and I back to my life of seducing all the beach bunnies I can get, because we certainly are not going to figure things out "winging it" on our own with just a bible like you are doing. Go back to the drawing board.
As G. K. Chesterton wrote, There is no other case of one continuous intelligent institution (The Catholic Church)that has been thinking about thinking for two thousand years. Its experience naturally covers nearly all experiences; and especially nearly all errors. The result is a map in which all the blind alleys and bad roads are clearly marked, all the ways that have been shown to be worthless by the best of all evidence: the evidence of those who have gone down them.
To maintain faith in ones own personal interpretation of scripture, one must cavalierly dismiss twenty centuries of the spiritual and intellectual work product of historys greatest minds and holiest men as nothing more than something done by other men. LUDICROUS!
This is why I studiously avoid churches and religion, and those who are members of religious orders. The judgmentalism and assumption of infallibility is insufferable, and I guarantee you, you are as wrong as Mormons or Lutherans or Presbyterians or Islamics. And just like all of them, you claim you have a monopoly on truth. Ha.
Oh, and in terms of longevity being a decider of truth.... When can I expect your conversion to Judaism?