If "god" is synonymous with the absolute truth of how the universe works then it can't address moral issues at all, since you can't prove an "ought" like "people shouldn't stab people" from an "is" like "stabbing hurts people and may kill them". You need to add extra axioms like "hurting people ought to be minimized".

The universe (and its intrinsic functions) holds no special value for people or trees or life in general. The best we can say is that it seems to have a slight preference for matter over antimatter for some reason.

All our moral codes and social norms we live by are purely human invention, derived from things that happen to work to produce a somewhat functioning society.