The only time I know that "grace" comes up in the 164 is on page 25;
"But for the grace of God, there would have been thousands more convincing demonstrations. So many want to stop but cannot.
There is a solution."
We do these steps and sobriety is the result. For us to take the credit and pound our chests would seem to be arrogant. It is said that we cannot earn God's grace. It's a gift... one that we cannot control.
I think that my "desire" was given to me by booze, but why I didn't die many times over is some kind of Grace.
But I cannot just pray to God, "Keep me sober" and expect that to work by itself. If that was the case, the Big Book would have been the Big Pamphlet saying, "God keeps you sober, have a good day."