@Scuba Pete did I explain it?
God's spirit is able to illuminate the meaning of the words which were written. Our friend believes without a shadow of a doubt that is what happened every time the original words first heard and written were copied. Many people believe the Bible that way.
So they feel no need to listen to God's spirit anymore. They do not have to! They believe in the words.
To believe in the words instead of to believe in God is idolatry. A person can surely do both. To do both is not idolatry. It is how I do it.
How? I believe in the spirit which caused the writing of words. I think maybe they fear they might lose God's approval if they doubt any of the words.
Which is childish and not according to something that I hold on to which is Acts 17:11.
Now the Berean Jews were of more noble character than those in Thessalonica, for they received the message with great eagerness and examined the Scriptures every day to see if what Paul said was true.
Paul's words became scripture according to those saying the Bible is as it should be! How is it then that the Bereans are called "noble"? It means they are being complimented by God through the word.
And what were they doing? They doubted the teaching of scripture. They checked it.
Presently most people do not check it. Why would they? They say, "there is no error in it".