Dear "man of faith" and I hope you really are.
What makes you think that following the outlines of the Quran is enough to be faithful to Allah?
If the Quran is the same message as the bible and the old testaments and not a continuity and a conclusion to them, then what is the point of sending the prophet Muhammad with such a heavy message and making him struggle to deliver it for no more than a repetition of what was previously stated and which as you claim could still be recovered from the corrupted Gospel of jesus?
Do you really think that following the Quran alone, regardless to the prophet's teatching and Hadith , is enough to find the path to Allah? Do you really think that you alone can understand the verses an draw conclusions upon which you find the way to Allah?
Have you ever read this verse of the Quran:
"He it is Who has revealed the Book to you; some of its verses are decisive, they are the basis of the Book, and others are allegorical; then as for those in whose hearts there is perversity they follow the part of it which is allegorical, seeking to mislead and seeking to give it (their own) interpretation. but none knows its interpretation except Allah, and those who are firmly rooted in knowledge say: We believe in it, it is all from our Lord; and none do mind except those having understanding. (Aal-e-Imran verse 7)
Can you please tell me who are "those who are firmly rooted in knowledge"?
Can you be sure that you can understand the verses of the Quran in the right way and not your own mislead way?
Isn't it obvious to you that the prophet did really delivered the message but didn't have time to explain in person all the details to us, hence we do really need the help from those who are firmly rooted in knowledge?
Do you know who those are?
Allah says:
Allah only desires to keep away the uncleanness from you, O people of the House! and to purify you a (thorough) purifying. (Al-Ahzab verse 33)
When he was asked about who the "people of the House" are, the prophet answered
According to hadith from sunni books (such as sahih muslim) and shia books those people are MUHAMMAD, ALI , FATIMA, HASSAN and HUSSEIN.
You definitely admit that when Allah desires something he just says "Be".
(Our word for a thing when We intend it, is only that We say to it, Be, and it is.)
You previously stated:
When Ibrahim asked if God's covenant would cover his offspring God replied that His covenant does not cover the unrighteous.
(Just for information God's covenant is not only a sort of agreement it is Al-Imama.)
Here is the Aya:
"And when his Lord tried Ibrahim with certain words, he fulfilled them. He said: Surely I will make you an Imam of men. Ibrahim said: And of my offspring? My covenant does not include the unjust, said He."(Al-Bakara verse 124)
Do you know that banou Umayyah and banou Al-Abass-who violated al-Cilapha- are offsprings of Ibrahim?
They are the real unrighteous who shall not be covered by God's covenant even though they sit on the thrown, they are not to be followed as representing allah! As you know Ibrahim was declared as Iman and never happened to be a king with a thrown or whatever.
One the other hand, Ahlulbait are purified according to Allah's will, and they are the ones to be followed.
Here comes the aya:
Say: I do not ask of you any reward for it but love for my near relatives. (Ash-Shura verse 23)
For information it is not the word love that allah used in arabic it is "al-mawaddah" which means more than just love, it is to love and to be faithful to something.
Of course they rewarded the prophet by violating Al-Cilapha first from Ali-the True Imam- then from his offspring, and they were not satisfied until they slaughtered Al-Hussein in Karbala who was seeking repair in al-Ummah.
Do you know that the prophet in his last days kept saying this:
I am leaving with you the two weightiness (most heavy things), the book of Allah and my household. If you laid hold on both of them you shall never get lost.
I enjoin you by Allah concerning my household (three times).
Can you see now that those people who must be followed after the prophet are Ahlulbait?
The problem is that most muslims followed the lead of the one who said "The prophet is overwhelmed with pain, the book of Allah is sufficient for us", this event known as "the shame of the day of thursday" happened when the prophet asked his companions during his last illness to bring him an inkwell so he could write down something after-which they would never get lost.
It is obvious what the prophet intended to write, that man clearly anticipated it so he cut the way by saying what he said and implicitly revealing what he fears: we don't want the lead of Ahlulbait if we get lost, the book of Allah is sufficient.
So this man is the father of all contradictor explanations (tafseer) of the Quran, that is because he withdraws the explanations of Ahlulbait because it leads of them being in power as True-Imams according to Allah's wish. Then he found himself, he and his fellows, obliged to stand up for misleading explanations against Ahlulbait, and to do so they had to invent a lot of hadiths, but first they had to get rid of all that might lead to Ahlulbait as righteous heirs of the legacy. So, after the death of the prophet they forbid the transmission of Hadith, they burnt all the parchments of hadith they found with the compagnions, all under the cover of protecting the Islam. This went on for many years until the library of hadith was rich with every kind of hadith that satisfies their wills, going from glorifying themselves, to attributing faults to the prophet's person, to improvising lies about his personal lives, worshipping some bad people known to be munafikeen, and so on with no one daring to reject this either under the threaten of sword or the seduction of money or power except for a very few number of companions who where either killed or exiled like what was done to Abu-Thar Al-Ghifari.
In conclusion, with this mentality, it is not surprising to find a lot of contradiction in the tafseer books. However the pure source of tafseer is still with those who are firmly rooted in knowledge Ali and the eleven Imams from his offspring, which they got from the prophet himself who taught Ali one thousand doors of knowledge, each of them lead to one thousand other doors, this divine knowledge was passed down to the rest Imams.
Finally, and after this I don't know according to what proof you claim that shia are idolaters???!