What Bible passages do Jehovah’s Witnesses use to support their view on free will?

I’m given to understand Jehovah’s Witnesses hold to something similar to libertarian free will, the belief that a person’s choices are free from the determination or constraints of human nature and free from any predetermination by God. Since I don’t understand the position very well, perhaps a brief explanation of the view would be helpful to me, but primarily my question is concerned with what argument can be made from the Bible for the JW view.