YLTYLT,
You claim that "Only after many requests to let his people go did God harden his (Pharoah's) heart." This is both presumptuous and irrelevant. The fact is that God did harden it, and He did so in order that He could judge Egypt with great judgments.
Exodus 7:2-4
"You shall speak all that I command you. And Aaron your brother shall tell Pharaoh to send the children of Israel out of his land. And I will harden Pharaoh's heart, and multiply My signs and My wonders in the land of Egypt. But Pharaoh will not heed you, so that I may lay My hand on Egypt and bring My armies and My people, the children of Israel, out of the land of Egypt by great judgments."
The issue here isn't when God hardened Pharoah's heart. The issue here is whether or not Pharoah could have overcome God's hardening of His heart and repented. How could he?
Proverbs 21:1
"The king's heart is in the hand of the LORD, Like the rivers of water; He turns it wherever He wishes."
The Bible is clear. Pharoah's heart was in the hands of a sovereign God. Pharoah's life was "Purpose Driven". God's purpose for raising up Pharoah was to destroy Him, that He might receive the glory for delivering His people.
Romans 9:17-18
"For the Scripture says to the Pharaoh, “For this very purpose I have raised you up, that I may show My power in you, and that My name may be declared in all the earth.” Therefore He has mercy on whom He wills, and whom He wills He hardens."
Sobering thought...
So Pharoah's hardening of the heart was not prior to his disobedience, it was as of a result of persistently not believing the word of God.
This verse also indicates that not receiving the love of truth (belief) is what sends a person to hell.
The Bible disagrees. The hardening of Pharoah's heart was the cause, not the result, of his disobedience (See Exodus 7:3-4 again).
One specific Greek translation I have heard is from Romans 9:22
22What if God, willing to shew his wrath, and to make his power known, endured with much longsuffering the vessels of wrath fitted to destruction:
This phrase fitted to destruction is in the middle voice in the Greek, meaning that unsaved men (vessels of wrath) fit themselves for destruction.
Says Who? Where does it say that men fit themselves for destruction?
Romans 9:21
"Does not the potter have power over the clay, from the same lump to make one vessel for honor and another for dishonor?"
Who is the potter YLTYLT? Try again.
God does not elect some people to go to heaven and others to go to hell. Men decide that for themselves.
Says Who?
...God chooses his own heritage. (Psalm 33:12)
...God creates the wicked for destruction. (Proverbs 16:4)
...Many are called, but few are chosen. (Matthew 22:14)
...As many as had been appointed to eternal life believed. (Acts 13:48)
...He foreknew, predestined ,called; justified; and glorified His elect. (Romans 8:28-30)
...God chose Jacob over Esau “not of works” but “that the purpose of God according to election might stand”. (Romans 9:10-13)
...God creates “vessels of wrath prepared for destruction” and “vessels of mercy, which He had prepared beforehand for glory”. (Romans 9:22-23)
...God did not appoint His elect to wrath, but to obtain salvation through our Lord Jesus Christ. (1 Thessalonians 5:9)
...The Pharisees were appointed to be disobedient to the Word (1 Peter 2:8,9) (and thank God they were).
...He chose His elect in Him before the foundation of the world, predestined them to adoption as sons, according to the good pleasure of His will. (Ephesians 1:4,5)
...We were predestined according to the purpose of Him who works all things according to the counsel of His will. (Ephesian 1:11)
...He has saved us and called us with a holy calling, not according to our works, but according to His own purpose and grace which was given to us in Christ Jesus before time began. (2 Timothy 1:9)
...God from the beginning chose us for salvation. (2 Thessalonians 2:13-14)
...Those who are with Him are called, chosen, and faithful. (Revelation 17:14)
...We are born again not by man's will, but God's (John 1:12-13)
...The Son quickens whom he will (John 5:21)
...All the Father gives shall come (John 6:37)
...God's word accomplishes what he pleases (Isaiah 55:11)
...God gives eternal life to “as many as thou hast given” (John 17:2)
...It is not of him that willeth or runneth (Romans 9:16)
...Who has resisted His will? (Romans 9:19)
...God works in you both to will and to do (Philippians 2:12-13)
Man's will does not rule supreme. Man cannot thrwart God's immutable decree, frustrate God's purpose, and tell God, "My council shall stand, and I will do all my pleasure". He is the potter, and He does what He wants to with the clay.