Religion: Why Take A Guess?

[Soleron]

Player1x3 said:

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The question that you should be asking yourself isn't if the God's word is his actual word, but whether or not do you yourself  actually agree with that word . If you do, you choose to believe it's true and follow it. If not, you reject it. It's really that simple

But God's word is ambigious. Which version should I believe? By choosing a version, might I not be wrong compared to someone who chose otherwise?