The judgments of conscience make morality objective. No God required.
Case #1. The facts indicate an unjustified killing
Case #2 The facts indicate a killing in a clear case of self defense
If you present these two cases to unbiased juries in any culture in the world, you will get the same judgments. The judgments of conscience are objective.
They seem subjective only because there are tons of biases created by the weak reasoning minds of people for any number of reasons. For example, a Christian who interprets the Sixth Commandment as an absolute rule will find that the killer in Case #2 has sinned. His minority opinion doesn't make morality subjective; it makes him wrong.
Actually, it means that he has a different perspective on the facts.
Say we start with two (hopefully non-controversial, widely accepted) value statements:
- life is preferable to death
- a lack of suffering is preferable to suffering
A difference in perspective on
factual matters can cause the same moral principles to lead to different conclusions about what actions are moral or immoral. When it comes to killing, questions like these are important for a moral judgement:
- does killing a person result in their death in a meaningful way, or will they go to some afterlife?
- if they go to an afterlife, is it pleasant or filled with suffering?
- will the killer be rewarded by God or made to suffer?
In the case of a Christian killing in self-defense, what is the Christian trying to protect himself from? An afterlife in paradise? That isn't even a net harm. OTOH, would the would-be murderer dying in a state of sin end up suffering forever? That would be a
tremendous net harm.
If we accept some pretty standard Christian views about the state of things, then Christian self-defense seems almost monstrous.