To Med School and Beyond

I had a conversation with two new friends today that and it stirred up my uncertainties about predestination and free will. I thought I knew what I believed, but I am not so sure anymore. It seems that depending on how I understand this issue will have significant inpact upon the way I view God and his character. I would greatly appreciate any helpful reference material support each view. However, I also realize that technically it shouldn't change my actions. I should be obedient to Christ whether I chose Christ or Christ chose me.