Over the years I have posts on my blog on the self-attesting nature of the Bible. See Master’s Thesis: The Self-Attesting Nature of the New Testament Canon by John Gordon Duncan, Quick Thoughts on the self attesting nature of the Bible and Introduction to Hermeneutics Series: Session Four: The Doctrine of the Self-Attesting Word of God.
I believe the Word of God when read is powerful to draw people to Himself and save sinners.
Here’s my own testimony.