people keep saying man can not create what god did not already provide for him.... then how could man create sin, if god did not make it possible in the first place?
To be made in God's image means that just like God his human souls are fundamentally spiritual in nature. Sin comes from our flesh nature whcih he also gave us. Basically, he puts spirit inside "clay pots" (our bodies) and we become human souls. God made sin possible of course but he shows us how to beat it.
Sin is not a physical object that has substance. Sin is a quality. The moment man stepped away from God by disobeying Him, they took on a sin nature. They were able to step away because God gave man dominion over all the earth and the creatures in it and desires people to serve Him because they want to not because they have to.