The prevailing belief among most people, whether they think it's true or not, is that God created a perfect world which became corrupted through human disobedience. We can see a statement like this in Genesis 1:31.
Once or Twice Offered?
If Christ became sin for us when God said "let there be light" and the lamb was slain from the foundation of the world, and Christ died on the cross at Calvary, was he offered once, or twice?
The Tree of Life
In the Bible the tree of life is used to refer to an actual tree which has leaves and fruit, but it's also used euphemistically to refer to the fruits of seeking and gaining wisdom.
The Tree of Knowledge
Creation was corrupted before Adam and Eve sinned in the garden of Eden. It was created in a corrupted state in order to manifest free will. We can prove it using a process we call deductive questioning.
Sin isn’t an Accident
God created the universe so that we can sin, otherwise there's no free will, and that means God created a universe in which sin is possible. Sin isn't an accident.
The Word Became Flesh
We need to demonstrate a logical progression [from] the elements produced by nucleosynthesis [to] organic life with replicating DNA. Fortunately science did a bang up job of documenting it.
There are two issues that help us to understand the reason for why we were created with free will and how this is even possible given the nature of God as pure and holy, not to mention omnipresent and omniscient.
He Became Sin for Us
Christ had to become sin for us. This has a meaning which goes beyond the symbolism of Christ on the cross. It goes back to the nature of the matter of which the universe is made.
Slain From the Foundation of the World
Jesus Christ, the Word of God, is also called the lamb that was slain [from] the foundation of the world, which we take to mean the lamb that was slain [at] the foundation of the world.
Saved by Faith not Works
Salvation is a gift of God's grace in exchange for faith, not works. No one's good enough to save themselves, so that can't have been the plan, not ever.