Are there theological explanations for why God let ambiguity to exist in Bible?

    I don't intend this question to be opinion-based, so I
    would rather encourage answers that draw on reputable sources

Ah yes, can't be having people bring personal opinions to a fandom dispute.

God was created by man in his own image. This fact supercedes any theological explanation.

Mankind has done this not just once but repeatedly; thousands of times down through recorded history.

Mankind is superstitious, illogical and inconsistent --- and naturally, so are the religions he has created. We should expect nothing more.