Eph 3: 8 ...to preach to the Gentiles the unsearchable riches of Christ, 9 and to bring to light for everyone what is the plan of the mystery hidden for ages in God who created all things, 10 so that through the church the manifold wisdom of God might now be made known to the rulers and authorities in the heavenly places. 11 This was according to the eternal purpose that he has realized in Christ Jesus our Lord, 12 in whom we have boldness and access with confidence through our faith in him.
This may seem an odd place to start speaking of Open View Theism but it is important to establish a few things before we get into the nature of Creation.
What we see here is that God has an eternal purpose for creation, and that God's eternal purpose remains for creation, and, in fact, to realize this purpose, Jesus Christ, the Son of God had to come.
Eph 1:3 Blessed be the God and Father of our Lord Jesus Christ, who has blessed us in Christ with every spiritual blessing in the heavenly places, 4 even as he chose us in him before the foundation of the world, that we should be holy and blameless before him. In love 5 he predestined us for adoption as sons through Jesus Christ, according to the purpose of his will, 6 to the praise of his glorious grace, with which he has blessed us in the Beloved.
Part of accomplishing this purpose is restoring our sonship. However, we can also see God's motivation for accomplishing this eternal purpose. It wasn't "out of obligation" or "in a desire to get back what was God's", but it was "In Love" that God predestines us for adoption." 1 John 4:8 says that God IS love. So, it is part of God's nature to love, and part of His eternal purpose to have created sons that engage in a loving relationship with Him.
Gen 1:26 Then God said, "Let us make man in our image, in our likeness, and let them rule over the fish of the sea and the birds of the air, over the livestock, over all the earth, and over all the creatures that move along the ground."
27 So God created man in his own image, in the image of God he created him; male and female he created them.
28 God blessed them and said to them, "Be fruitful and increase in number; fill the earth and subdue it. Rule over the fish of the sea and the birds of the air and over every living creature that moves on the ground."
To me, this is the piece that many people miss as part of God's eternal purpose. Maybe it is the influence of dispensationalism, I don't know.
But God's will for mankind is to rule over the earth. To subdue it. We are commanded to multiply to accomplish this purpose. Now, the fact that we see that we are created in God's image smack dab between God declaring that man will be created to rule over the earth, and God's order to man to rule over the earth clearly suggests that the primary way in which we are created in the image of God is that we are able to rule, and that we have authority. The earth is God's blessing to mankind.
So, what do we have so far? We have God, whose eternal purpose is to engage in a loving relationship with mankind, creating the universe, placing man in the middle of it, and giving man dominion over it, and telling him to go subdue it. in part through multiplying.
Notice that the expression of love is complete. God has created a perfect universe, and then created man, and, in love, given man everything to rule over.
Except for the tree of the knowledge of good and evil:
Gen 2:15The LORD God took the man and put him in the garden of Eden to work it and keep it. 16And the LORD God commanded the man, saying, "You may surely eat of every tree of the garden, 17but of the tree of the knowledge of good and evil you shall not eat, for in the day that you eat[d] of it you shall surely die."
Unfortunately, we aren't directly told why God put the tree there. It is just a part of the story.
And a big part, as it turns out. A serpent appears, and convinced Eve and Adam to eat from the TGKE. And God appears, and His just and righteous nature demads that He judge them. But notice in the curses that man's dominion over the earth is not lost:
14The LORD God said to the serpent,
"Because you have done this,
cursed are you above all livestock
and above all beasts of the field;
on your belly you shall go,
and dust you shall eat
all the days of your life.
15I will put enmity between you and the woman,
and between your offspring and her offspring;
he shall bruise your head,
and you shall bruise his heel."
16To the woman he said,
"I will surely multiply your pain in childbearing;
in pain you shall bring forth children.
Your desire shall be for your husband,
and he shall rule over you."
17And to Adam he said,
"Because you have listened to the voice of your wife
and have eaten of the tree
of which I commanded you,
'You shall not eat of it,'
cursed is the ground because of you;
in pain you shall eat of it all the days of your life;
18thorns and thistles it shall bring forth for you;
and you shall eat the plants of the field.
19By the sweat of your face
you shall eat bread,
till you return to the ground,
for out of it you were taken;
for you are dust,
and to dust you shall return."
The woman's place is reduced as a result of the curse, in that the man will rule over her. But man's role in subduing the earth is
confirmed, but also made more difficult, for now thorns and thistles will appear, and our diet will be grain, not fruit. And, as promised, death now overshadows them.
We also see God assuring the death of Adam and Eve:
Gen 3: 22Then the LORD God said, "Behold, the man has become like one of us in knowing good and evil. Now, lest he reach out his hand and take also of the tree of life and eat, and live forever—" 23therefore the LORD God sent him out from the garden of Eden to work the ground from which he was taken.
So, sin has entered the world, and plagues those who have been given dominion over the earth.
Why wasn't dominion removed?
If you go back, you'll see that God's gift to Adam and Eve was without condition. Man would have dominion over creation, and whomever man chose to serve would now rule over man.
Why is this all important?
It supports the tenants of OVT:
1) God created because He desired to bestow love. God created man with a relational capability, placed him in a perfect world, and gave man dominion over it, so that man's every need would be met, and God and man would live in a perfect loving relationship.
2) God's purpose was to have this relationship. Neither sin nor the fall was God's will for creation.
3) Man has dominion over the earth. What happens here is the result of man's decisions.
So, how do we arrive at some of the often disputed elements of OVT?
1) Denial of EDF. God's eternal purpose is to have a perfect and loving relationship with mankind.If God creates a world in which He knows that the majority of mankind ends up being eternally punished for sin, then God would be thwarting His own purpose. The only other option is to say that man does not have free will, and God's intent was to have a "loving relationship" with the few He saved, but that brings us to point #2:
2) A loving relationship requires free choice. This tenant actually helps us to explain the TGKE. Without a way to reject God, the relationship between A&E couldn't be defined as a loving one. A loving relationship is best defined by two people who choose to meet each other's needs and desires. Obviously God doesn't have any needs, but He does desire for us to worship and give glory to Him, and to engage in this loving relationship with Him. God has already met all our needs in giving us dominion over the earth, and then sending Jesus Christ to die for us.
But without the ability to choose to love freely, that relationship cannot be defined as a loving one. Thus, free choice is necessary for God's eternal purpose.
2a) Logically speaking EDF and free choice are incompatible.
3) Evil is wholly man's doing. The fall was not God's will. Evil that occurs after the fall was not
in any way a part of God's eternal purpose. Even where God orders Israel to wipe out a city or a nation is only a just and necessary result of the fall.
To the answer to: Why does God allow evil? Why doesn't God prevent evil? The answer is that God gave man dominion over the earth. To prevent man from committing evil directly would be a violation of God's declaration in creation. There may be individual instances where God is protecting His chosen servant for a given purpose, but even this actions appear to be done to the servant, and not the perpetrator.
To the question: Why doesn't God directly preach the gospel to all men. Same answer: Man has dominion over the earth. Thus, the preaching of the gospel, the prevention of evil, the furtherance of good on earth must come through men. We see this in Romans 10:14, where one cannot hear the gospel without a preacher.
In fact, it is a rare event indeed (if at all) when God directly interacts with men who are not His chosen servant(s) to communicate the message.
Now, there are evidences of the future being logically unknowable, (Gen 22, Jer 6), and of God changing His mind (Exo 32), and other corollaries to OVT, but these do not form the foundation of OVT doctrine. I'm sure one could compile a different list of verses to demonstrate these same doctrines, and someone probably has. But these are the ones that I use to demonstrate the doctrines of OVT.