It's how one qualifies the term "predestination" in order to understand what it means regarding God's will for man an His actions within us. It's not strict determinism, but rather includes God's foreknowledge of what we will do,
The problem with that is divine "foreknowledge" in the Bible is never used of God knowing in advance what
man will do, it is always of God knowing what
he will do because before the foundations of the world, he
decreed that he
shall do it.
Acts 15:18 - "Known to the Lord for ages (foreknowledge) is
his work."
Isaiah 48:3 - "
I foretold (
forekowledge) the former things of
long ago,
my mouth
announced (
decreed) them, and
I made them known;
then suddenly
I acted, (
foreknowledge
executed), and they came to pass.
God
executed in their
present the purpose and choice
he made be
fore the foundations of the world; i.e.,
God executed/
accomplished (acted
according to)
his foreknowledge (
his previous purpose and choice)
. . .as in Jacob (Romans 9:11-12).
then His use of our choices and actions for His own purposes. So, did God harden Pharoah's heart or did Pharoah harden Pharoah's heart? In Exodus it's said that both did, but that Pharoah hardended his own heart many more times than that God did.
It appears in
Exodus 4:21 for the
first time,
before Moses had even
left Midian to go to Pharaoh.
And God doesn't have to harden our unregenerate hearts, they are already hardened, we were
born with hardened hearts,
by nature (with which we were born) objects of wrath (
Ephesians 2:3).
All he has to do is not soften them, just leave us to ourselves, which is what he did with Pharaoh, and Pharaoh's own self-will resisted God's will, hardening his heart further himself. God didn't have to do a thing, but to
not soften it, which is why the text repeatedly states that Pharaoh hardened his own heart.