Does it? I seem to remember a part in the Old Testament where the Abrahamic god orders his followers to commit genocide against some other tribe. How is that "doing good"?
The point is that those events, in the context of Christian thought, are seen as good - their god is telling his people to clear some unbelievers. Christian dogma maintains that their god and his commandments are fundamentally moral, that they are the very base for objective morality. In Christian thought, by definition, anything that their god wanted to happen is good.
Norse religions, on the other hand, make no such claims about their gods. Within the context of Norse beliefs and religious moraloty, Odin has done evil things, Loki has done evil things, etc. That is why, within their own system of beliefs, the gods are morally ambiguous.
Presumably you believe you are an accidental combination of chemicals, here because other chemical mixtures were the "fittest" -- often, the most ruthless.
On what basis does a fittest chemical blob say "you ought to..."? You need an objective moral standard for that and you won't find it in your chemistry set.
God is good, by definition. It's just built into the Christian belief system. Men can do evil, but God can't. The question of how evil can exist at the same time as an all-benevolent God is such a hard problem that it even has a nifty name.
Does it? I seem to remember a part in the Old Testament where the Abrahamic god orders his followers to commit genocide against some other tribe. How is that "doing good"?