Faith is a gift from the Holy Spirit. Therefore, any attempt to reconstruct it based on the best data is doomed to fail. Instead, one must receive the catholic faith where it is always held in purity: the Church.
On Textual Criticism
While textual criticism has proven a problem and scandal to most Christians, it becomes a fruitful resource if understood theologically by the faithful.
Sola Scriptura & the Authority of the Catholic Church
Sola Scriptura does not take from but reinforces the authority of the Catholic Church. The Holy Ghost works in His Church to bring us closer to the Scriptures.