Hmmmm....why would He have to obscure His teaching from those who could not hear it anyways......and harden the hearts of those who had a dead heart anyways.....
Why did God say that his eye goes to and forth throughout the world searching for someone to show himself strong in? Doesn’t God know everything? Why then does He have to search?
2Ch 16:9 For the eyes of the LORD run to and fro throughout the whole earth, to shew himself strong in the behalf of them whose heart is perfect toward him. Herein thou hast done foolishly: therefore from henceforth thou shalt have wars.
Why did God say that the spirit of man is the candle of the Lord, searching out the very depths of his heart? Doesn't God know everything?
Pro 20:27 The spirit of man is the candle of the LORD, searching all the inward parts of the belly.
Why did God say that He removed Himself from Hezekiah to see what was in his heart, doesn’t He know already?
2Ch 32:31 Howbeit in the business of the ambassadors of the princes of Babylon, who sent unto him to enquire of the wonder that was done in the land, God left him, to try him, that he might know all that was in his heart.
God uses language which can be misused in light of the analogy of faith (comparing scripture with scripture). The example Van is using is such a one. Christ was using that language to proclaim of judgment via spiritual blindness against a hardened people, yet that does not mean that man is not totally depraved, in Exodus "God hardened Pharaoh's heart and Pharaoh "hardened his own heart." The prophetic judgement of Christ via parables is a display of God's distinguishing grace against the Jews which was prophesied to occur in the prophets, therefore, a biblical theology helps in understanding this passage, along with a comparison of similar prima facie problem texts in scripture.
In God's infinite mercy He gives the knowledge and truth we need at the level and timing we can handle it. Then, He brings us deeper into His Word and gives us a deeper understanding as we grow in our faith. These truths will not contradict, but rather expound and expand our faith. The more we know and have grown in our faith and knowledge, the more reasonability we have to model and tell it to others. This is also why many Christians are not involved in Discipleship and why most churches do not teach from the Bible or only offer superficial messages; the pastors and members are in fear of their growth because they do not want to responsibly model Jesus or show and tell Him to others. Many Christians prefer disobedience rather than an effectual faith that is contagious.
So,
when we are ready, we get it; when we get it, we are responsible for it and have the passion to run with it. If you do not get it, you are too prideful, too apathetic or too immature or too young in the faith to understand because you have not learned and applied what must come and become before. You cannot play Beethoven when first learning the piano, nor can you do calculus when you are just learning fractions. You build up to it, practicing and meeting challenges that are appropriate for where you are.
When Jesus first taught these parables, the disciple were not ready, thus they did not get it; they were too young in the faith.
The Pharisees did not get it not because of their ignorance; they were certain of what they knew, and they just were so prideful that they would not allow the Truth to penetrate their conceit and traditions.
When they were ready, they "got it" and a multitude of these very Jews were then saved.