To the contrary...

To the contrary, it is because “honesty” is good that God has obligated it and because “lying” is bad that God has forbidden it. In short, God’s commanding or forbidding is based on the goodness or badness of actions in their essence, and not the other way around. From these two premises, we conclude that since God does not discriminate, and since good deeds are good from all people, whoever does a good deed will definitely and necessarily be rewarded by God.

It is exactly the same way with regard to evil deeds since there is no difference between those who commit them. 2. Narrational proof. The Qur’ān affirms in many verses the principle of non-discrimination among people in rewarding good deeds and punishing evil deeds – which was mentioned in the above rational proof. The Qur’ān strongly opposed the Jews, who believed in such discrimination.