There is indeed a vast and evident dichotomy, and I find it spiritually grievous that you seem to be convinced that one cannot discern truth 9or confirm what men teach) from the Scriptures alone, and that i must be some follower of Luther or whoever. But i honestly realize that until one is truly born again the Bible seems more or less a rather nebulous book.
When faced with a doctrine like the Divinity of Christ i examine it (and opposing views) myself in the light of Scripture, and let that convince me. http://peacebyjesus.witnesstoday.org/DEITYofCHRIST.html.
While commentaries of proven faithful men are helpful, i do not not wholly trust them, but the Word of god must itself convince me.
Did Paul go around quoting various authorities for substantiation for what he taught? (Acts 17:2) “And Paul, as his manner was, went in unto them, and three sabbath days reasoned with them out of the scriptures,”
How do you think the Bereans were convinced that what the apostles taught? (Acts 17:11) “These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so.”
This, like miracles, is riskier if your goal is basically unity by passively acceptance, but it is Biblical and the way to Biblical unity.