Answer:
Mercy only exists in a world wherein evil actions happen: a fallen world. We do not speak of mercy when something good happens; we give thanks. Thus, in a world without evil, there is no need for mercy. And while this may be obvious, it can prove complicated.
Mercy has two levels, a divine side and a human side. From the human side, we are asked to forgive enemies and the acknowledged sins of others. But this willingness to forgive is not a minimization of the wrongs, but a recognition of their seriousness. Mercy is not a substitute for repentance on the part of the one who does evil. Mercy is rather a gesture on the part of those who suffer from our evil deeds or words.
