It was MAN that wrote that Gods gift is free will. The architecture, and personality of God has been entirely contructed by man.
It is a curious thing, that many people can be perfectly comfortable with the arbitrary admission and utilization of diverse, abstract "constructions" such as mathematics, ideas, thoughts, intuitions, feelings, and all kinds of phenomological concepts...which transcend our physical world (i.e are non-physical), yet at the same time deny the reality and existence of a divine Creator, i.e. God.
The opposite view is that, while man is certainly a finite (and fallible) being, Man's knowledge of an absolutely infinite God comes not only through Divine revelation, but also through innate reason, logic, and reflection on experience...all of which exercise the grace of Free Will.