You're a bit confused. Why bother involving God if you really believe the only thing you are is molecules and water?

People like to overcomplicate things because the simple route is far more demanding. We as a species do nothing but come up with excuses why we cant be good or why we have to do bad, and to a large degree these choices are perceived rightly to be neccessary because we make our collective reality what it is.

You have to know what to kill. Internally and externally. Free will is you getting up to do exactly what you want because you tolerate nothing less. Have fun doing what you do for a living and you'll never work a day in your life. Words to live by.