This portion here (started and finished by God from justification to glorificiation) I believe concerns more specific to salvation than the believer living out his christian life. That is IF you are refering back to the Romans 8passage.
Life/ rebirth begins around justification and ends with glorification. Just as it seems, I really believe that the Christian Life is not made up of simply individual choices but is held 100% in the sovereign hand of God over all our choices. I am probably misunderstanding you, but I don't really see how salvation and Christian life can be separated as they are part of each other.
If the above is true, specicially toward our christian living, then God works in some believers to be fairly lazy in their christian walk as well as very undiscerning in some/many of their activities both public and private. Whereas in others others He makes them to live a more holy in life and conversation. In both of the cases it is the not the persons choice to live in such a way but God's moving them to live in each way because it is God who does all things, start to finish in believers. Therfore the desires of both are initiated by God and completed by Him, in the one to live continuously right before the Lord and in the other to live in a much less desirous manner than the first. (as I see it)
Kinda, I see it as people are responsible totally but completely dependent on God for any wise choice to whatever appointed level He gives them for their purpose. So it isn't God's fault that they were lazier or more undiscerning, but is a result of their own sin. God just chooses He gives greater faith and gifts to according to what the big picture is.
As such, we can never forget our responsiblity in both our life and conversation. Without question God does moves us to holiness but we must respond in faith to walk in it. Some seem to forget this.
I think I understand where your coming from and I'm sure you see my view on this as well. Unfortunately, we are totally responsible, totally sinful, and as a result all responses are of sin left totally alone. By the grace of God alone can we do what is right in Christian living. On the other hand I agree that this doesn't send me home to the couch to wait for God to give me some special feeling, in fact, I have no idea what this secret will of God is doing. I act in a totally responsible way by faith and obedience. I am just aware by faith that all of what I am doing is by the grace of God. So 60 years down the road of totally focusing on God's word and all it says I may look back and know that every last wise choice I made was by the grace and sovereign hand of the Lord and none was by my own will, not even faith. The way you explained it seems to be a way that would put the Lord to the test, which biblically I don't dare to do such a thing as to test God and His sovereignty. Is that where you were going?
The rewards I spoke of refer to that responsibility of our self sacrifice and obedience now that we are in Christ.
These rewards reveal the extent of self sacrifice and obedience these people were willing to give.
So if I applied the rewards idea to what I just carried on about then in a sense yes I live my entire life in faith and obedience by what seems to be my free will, but when I get to heaven I look back and see the big picture to where God was totally controlling all events down to the very least of my decisions. How? I have no clue... My response to this in heaven would be to lay my crown at His feet.