According as his divine power hath given unto us all things that pertain unto life and godliness, through the knowledge of him that hath called us to glory and virtue: Whereby are given unto us exceeding great and precious promises: that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust.
(2 Peter 1:3-4) KJV
There’s a relationship between corruption and free will which goes, of necessity, all the way back to the formation of the cosmos. Light and darkness had to be mingled together in order to manifest free will.
This happened in the beginning when God said let there be light. It may also be translated as let light be. God’s command caused the waters of the deep to undergo nucleosynthesis. Hydrogen atoms (protons) in the deep fused emitting light (creating darkness) and forming neutrons. Neutrons are the corruption inherent in the universe. Neutrons are part of all atomic nuclei in the world and the cosmos that we’re aware of. We refer to this as let light be nucleosynthesis (LLBN).
Mythbuster: Nucleosynthesis was not the fusion of protons with neutrons. Nucleosynthesis was the fusion of protons with protons. The energy emitted as light causes one of the protons to become a neutron.
Free will gives all sentient beings the ability to make decisions. The sentient being has also been given knowledge of right and wrong. Free will allows a sentient being to make a decision that he or she knows is wrong. This is disobedience. God gave us the ability to be disobedient. A Biblical word for disobedience is sin.
It’s only possible to sin if sin is possible, and that’s why the universe had to be created in a corrupted state.

July 4th – It Was Very Good
The fall of man and the corrupted state of creation aren’t the same thing. The universe had to be created in a corrupted state so that the fall of man could take place.