There was, I believe, a huge change in Adam in the fall.
Indeed, He opened the floodgates of hell to invade his soul and the souls of his progeny by way of vanity-self-gratification. The problem is that while he could have had God's power in keeping it closed, he forfeited such divine power by not obeying the one command and in doing so kept the problem of overcoming the temptation to open it for his progeny to deal with, with only promises from God to sustain them. Thus we have this from God spoken to them in so many words: "If you will do this, I will do that and if you do that, I will this."
The flesh being weak, God soon had to repent He ever made man, destroy him and start over with 4 couples conceived in sin. Now, start from there and please explain what God did that did not require Him to "gift" them anything?
Having said all that why not get back to answering this question:
Our salvation, by the will of God or the will of man? ___
http://www.theologyonline.com/forums/showthread.php?t=107856
"I call heaven and earth to record this day against you, that I have set before you life and death, blessing and cursing:therefore [you] choose life, that both you and your seed may live" Deuteronomy 30:19 (KJV)