Richard,
Your question “What is in Tradition that is needed for salvation and not in the Bible?” has been answered. But, you will not believe anything we say so stop asking. Seriously, it is pointless. The Bible is not limited to those things you said. As a matter of fact, those are minutes parts of it. It is not a mere biography (about Jesus) or textbook (teach His principles) as you claim; it is Divine Revelation written down. It is the written Word of God. It is living. Hebrews 4:12. All doctrine is necessary for salvation; otherwise, they would not be doctrine. They are not just words and letters. If they were, then life would be pointless. If you fail to see this, then so be it. It is true. Just think about all doctrine. Anunciation of Christ, Christ’s Incarnation, Virgin Birth, Suffering, Crucifixion, Death, preaching to the dead, Resurrection, Ascension, Mediator, Redemption of Man, The Holy Trinity, Mary’s sinlessness, Mother of God, Perpetual Virginity, Assumption, Queen of Heaven, Heaven, Hell, Purgatory, Indulgences, Commandments, Communion of Saints, Infallibility, Creation, Marriage, Confession, Holy Communion, Eucharist, Eucharistic Adoration, Tradition, Holy Spirit, Prayer, Faith and Works, Divine Grace, Justification, Salvation, etc…
I realize you do not agree with some of these but that is because you fail to see why they would be needed in our salvation. Can I explain them? Heck no! But it is all true to the Christian life. I guarantee that you live by at least 85% of them for you own salvation and not even know it, including the ones about Mary (which are about Christ anyway). It is all there in Tradition, spoken and written. Do we need to know every single word of every single doctrine? Nope but that does not mean we do not know it.
Your analysis of Romans is way too confusing, for me anyway. The Church’s explanation is way easier and is objective. The conclusion was reached via premises:
- All have sinned
- But, Christ did not sin
- Therefore, “All” must be an exaggeration.
It is simple, logical, reasonable, rational, biblical, etc…
Not the other way around which is the way you made. But, it is too weird to be put into a syllogism. But the premises are reached via the conclusion and that is a bad way to argue.
Romans 3:23 is a major claim and MUST be able to stand on its own without contradiction to any other verse in Scripture as do all others. In the Catholic view, it does stand without contradiction. In your view, it does NOT stand without contradiction. Do you see your error?
Again, how do you know Scriptures are infallible?