How do religious teachers square the value of scriptures such as the Johannine comma where originality and authenticity are in question?

I'm curious how, in the context of spiritual teaching and leveraging scripture, religious leaders are balancing the value of the text with questions that scholarship has raised as to the authenticity and originality of various texts such as the Johannine comma, the woman caught in adultery, the end of Mark, etc. Thank you in advance for your thoughts!