Truth, right, wrong, good, evil, are independent of any "god."
See the "Epicurean Riddle" -
Is God willing to prevent evil, but not able?
Then he is not omnipotent.
Is he able, but not willing?
Then he is malevolent.
Is he both able and willing?
Then whence cometh evil?
Is he neither able nor willing?
Then why call him God?
Another form of the argument is as follows:
- God exists.
- God is omnipotent, omniscient, and perfectly good.
- A perfectly good being would want to prevent all evils.
- An omniscient being knows every way in which evils can come into existence.
- An omnipotent being, who knows every way in which an evil can come into existence, has the power to prevent that evil from coming into existence.
- A being who knows every way in which an evil can come into existence, who is able to prevent that evil from coming into existence, and who wants to do so, would prevent the existence of that evil.
- If there exists an omnipotent, omniscient, and perfectly good being, then no evil exists.
- Evil exists (logical contradiction).
So, if there really is a perfectly good, loving God, the fact that evil runs rampant in the world, that people suffer and die horribly in every corner of the planet, easily disproves either God's goodness, omnipotence, omniscience, or simple existence.
It is wrong to hurt others. This is independent of religion or culture. The allowance for injuring others is an aberration, universally despised. Same with theft and lying, both being but subtle shades of hurting others. We do not need a god to provide us with guidance on how *not* to harm others.