It’s hard to read the Old Testament without marveling at the prophets and the accuracy of their predictions. Yet, while they were making their predictions, many disbelieved. When looking back, we read their writings, and are amazed at how accurately their knowledge of the future was.
Just as amazing? The fact that some can read and not believe, see and not understand. Those poor souls are lost. They are not among the “elect”. They have chosen to put themselves and other created entities ahead of God, so they must disregard any evidence of His power and wisdom.
It’s hard to make the blind see. Jesus could do that. He still can. That’s why we should pray for unbelievers. Our prayers are the only chance most of them have to be saved.