Isaiah 29:12

And the book is delivered to him that is not learned, saying, Read this, I pray thee: and he saith, I am not learned.

Cross-reference

Isaiah 29:18 promises the deaf hear and blind see the book—contrasting the illiterate's inability to read in v12.

In 1 Corinthians 14:16, Paul uses the same 'unlearned' concept — a person cannot respond 'Amen' to what they don't understand, paralleling the unlearned man in Isaiah.

In Revelation 5:2, an angel asks who is worthy to open the sealed scroll — mirroring the unreadable book in Isaiah that no human can read.

John 7:15 Contrast

John 7:15 marvels that Jesus has learning without study—contrasting the illiterate who cannot read.