First, you should make sure that you introduce yourself to the forum, it’s one of the rules. 
Second, I no longer call myself a Christian, I excommunicated myself a few months ago by becoming a heretic, and then an apostate. It’s my intention to remain this way, and I have musings about practicing Judaism, Islam, or Hinduism to gain the same in depth knowledge about them that I have of Christianity.
But, I would say that we should treat the Bible with the same respect we treat other holy scriptures. But, we shouldn’t overtly revere it. It’s a great tool for divination, just think about your question in your mind and randomly open your bible and the verse you see first is an answer, it was an old tradition in the Catholic Church called Sortes Sanctum which translates to Lots of the Saints.
Yes, this is true. Originally, the Hebrews were part of the Canaanite pantheon, and originally the worshiped Yahweh among the other gods of the Canaanite pantheon, including El, the cheif of the Canaanite pantheon. Isra-El for example (The Hebrew root of “isra” is a complicated and hard to translate name, it carries the connotations of fighting and through fighting becoming victorious over your opponent, and it is unknown whether it is El doing the fighting on behalf of the man, or the man doing to fighting against El.) I have detailed previously how the Hebrews went from worshiping El and the Eloheim to a singular devotion to the god Yahweh during the times of the Prophets Hosea (Salvation) and Elijah (El is Yahweh) who began the cult of Yahweh and eventually he eventually subsumed the characteristics of El.
Yahweh was originally a warrior God who rode on clouds, we have evidence of him also in the Bedouin Pantheon and pre-Islamic Pagan Arabia. Yahweh sent Moses to free the Hebrews from Egyptian slavery and then Yahweh and the Hebrews made a covenant together, which is why they remain the chosen people of God to this day.
Anyway, I’m rambling, I have to go soon. But when the Hebrews went into the Babylonian exile they got heavily influenced by Zoroastrianism and part of that Zoroastrian influence was taking Yahweh, who did both good and evil, and make him do only the good, like Ahura Mazda. And then, they took a class of angel, the satans, known for their accusing nature got rebranded as Satan, the entity that opposes Yahweh in the same way that Ahriman opposes Ahura Mazda. And a lot of things, like an actual afterlife other than the grave, a belief in the resurrection, and many other beliefs that weren’t originally Jewish but became so.
Christianity is the inheritor of this legacy of Zoroastrian influence into Judaism.