Which is to claim for the individual what is collectively claimed by many denominations. But not, it seems, the Episcopal Church or the Presbyterian Church USA, who seem to have dumped Scripture as a standard.
True, but remember, the Bible says that each person will be held accountable for their lives, which includes their faifhfulness to search out the Scriptures, learn from them, and apply them to their lives. So, while the individual is responsible, this doesn't necessarily make each individual an authority unto themselves - it just makes each person individually accountable. There'll be no hiding behind an excuse like "Well, the bishop told me that's what I should believe!" on the judgment day.