I don’t know where you’re coming from anymore because this understanding of Pharoah is neither Biblical, nor Qur’anic. At the core of this, in my opinion, is a man-centred theology. A theology that says that man always has the necessary amount of grace to believe and that God does not seal someone’s heart. Nowhere does this leave room for the Holiness of Allah azza wa jal to harden whom He wills, so as to punish the sinner who rightfully deserves it. It’s always man who is able to do this or that; and that Allah is more-or-less a slave to man’s ability [or inability] to co-operate.
So I’ve said my piece. There’s nowhere else to go. “For you is your religion, and for me is my religion” [Qur’an, surah 109:6]
Once again ,in my opinion ,one outside of the "Christian " profession ,has put to shame,that profession of Christianity that they proclaim.
Again dract16, we must needs ,differ on certain aspects:
I don’t believe God ( as revealed ,and preserved in his holy word) would individually" seal someone’s heart" as you put it.
But mankind ( by his fall)sealed his own death,or if you like hardness of heart.
"Wherefore God also gave them up "(Romans 2:24) That is corporately ,
He gave them up ( or if you like: sealed that choice ;or that "free will rejection of him ,that mankind made ,whilst in the perfection of the garden of Eden.)
Although Paul ,relating ,to us,the fact that " God gave them up" ,is manifest after the fall ,as seen here,this to me ,simply evidences proof positive :that darkness or deadness within the heart of every man ( and woman)was the result of man’ fall “in the beginning”.
Because even now ,all creation cries out his name ;and deep within the conscience of every man :testimony that God is departed,is written there.
"Because that which may be known of God is manifest in them,for God hath showed it unto them.
For the invisible things of him from the creation of the world are clearly seen,being understood by the things that are made,even his eternal power and Godhead;so that they are without excuse:
Because that,when they knew God,they glorified him not as God,neither were thankful:but became vain in their imaginations ,and their foolish heart was darkened"
Romans2:19-21.
Now that God opens the heart individually ,that is another matter.As is witnessed by the conversion of Paul and Lydia whose heart( book of the Acts). " the Lord opened"
But your observation that mans free will makes God powerless and reliant on Man ,for me ,is inescapably true.
For example,that Christ Jesus was offered up a sinless sacrifice for sin and in so doing suffered in the body(,outside of mans ability to describe) ,but if man chose to reject this ,salvation then the possibility that no one was there for no one to " accept" it.
So this ,to me clearly places God at the mercy of Man.Upside down ( or from earth to heaven)
But the Gospel of Jesus Christ : entirely places sinful man ,at the mercy of God( from heaven to earth)