I have no problem with it being taught for its literary, historical and philosophical value - but the contradictions, complete impossibilities, the revisions and alterations should also be taught.

Just don't teach it as fact or the ridiculous assertion that it's "God's word."

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"All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident." - Schopenhauer