f there is a "God" ... whether in the Judeo-Christian way or some other, whether named "Allah" "Jehovah" "Thor" "Brahma" or "Stanley" ... I will fetch water and chop wood, seeking to live in a gentle way, avoiding harm to self and others (not two, by the way).
If there is no "God" "Allah" or "Stanley", or any source or creator or point to the universe at all, I will fetch water and chop wood, seeking to live in a gentle way, avoiding harm to self and others (not two, by the way).
I do not know if, in the next life, that "gentle way, avoiding harm" will buy me a ticket to heaven and keep me out of hell ... but I know for a fact that it will go far to do so in this life, today, where I see people create all manner of "heavens and hells" for themselves and those around them by their harmful words, thoughts and acts in this life.
And if there is a "heaven and hell" in the next life, or other effects of Karma now ... well, my actions now have effects then too, and might be the ticket to heaven or good rebirth.
In other words, whatever the case ... today, now ... live in a gentle way, avoiding harm to self and others (not two, by the way) ... seeking to avoid harm now and in the future too.