God who is the creator of life and worlds, gave certain living creatures free will in order to allow them to love him in return. But free will comes with risk. Creatures with free will have the ability to reject God and go their own way instead. Why would God do that? Because if there is no free will, then there is no true love. Any semblance of love would simply be us obeying a command.
With free will, it would be logical to assume that within eternity, there would at least be one world that God created that would fall because of free will. So God allowed it to happen when it did, but he let it be a witness to angels and a great cloud of witnesses to see the wisdom of such a thing. Of course, it not only led to evil, sin, misery and an increasing lack of love, but it ultimately lead to death. Now that this has happen, God who is love offered a way for this world to be redeemed. He gave each one of us the right to become sons of God, despite our sin.
Here is what we know so far from what is written in the Bible →