What is the best way to explain to a seeker that the Bible is accurate and trustworthy and yet be honest that most versions have what we would call "copyist errors"?

Please be concise and use non-churches vocabulary. I am trying to explain this to a relative.

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Pergamum


"If a commission by an earthly king is considered a honor, how can a commission by a Heavenly King be considered a sacrifice?"
-- David Livingstone