I agree that if doctrines contradict Scripture then they are wrong. But it does not follow that they have to be Scripturally confirmed.
Sola Scriptura contradicts Scripture. I've given many examples (see post #211) which you have failed to address.
Untrue. It is correct to believe Scripture to be authoritative (true and reliable) - if properly interpreted. but also reject Sola Scriptura
People who believe in the false teaching of Sola Scriptura which contradicts Scripture itself are honoring Scripture with their lips, while practising traditions contrary to Scripture with their lives.
Likewise, they speak the name of Jesus with their lips only, while idolizing their own selves with a tradition of men that rejects Scripture of God.
I agree that if doctrines contradict Scripture then they are wrong. But it does not follow that they have to be Scripturally confirmed.
Fair enough. You reject anything that plainly contradicts Scripture; however, that is not the real subtlety of the serpent.
Only the most foolish would agree nudist colonies for Christians is good with God, because it plainly contradicts the scripture to be clothed in public. (1 Tim 2:9)
The real snare of the devil is in preaching traditions of men for doctrine of God (), which occurs when traditions of men are treated equally with Scripture.
Those traditions falsely taught for words of God are them that are not confirmed as true of God by Scripture.
The transgression of Adam was preceding by the first outside tradition being treated equally with Scripture of God:
But of the fruit of the tree which is in the midst of the garden, God hath said, Ye shall not eat of it, neither shall ye touch it, lest ye die.
God did not say, neither shall ye touch it.
It isn't a contradiction of Scripture, but it is a word of rule and tradition spoken by man, but not confirmed by God. And the serpent used the opportunity of such intermixing man's words with God's Scripture, to lure the deceived woman into transgression: Eating the fruit.
The tree of the knowledge of good and evil, is the outside source for outside traditions, which become evil, when preached equally as the good tradition and Word of God in Scripture.
When that evil fruit, that is lying about the truth of God, is eaten and consumed into the heart, then the eater thereof becomes a deceived idolator, believing and obeying words of men equal to words of God, that are written in Scripture only.
If you believe and practice traditions spoken by men, that Scripture does not confirm and agree with, then you are eating of the fruit that God has commanded us not to eat, and like Adam, you are chased off from eating of the fruit of the tree of Life.
God does not have two differing sources, nor is He the God of two masters to hear, believe, and serve.