It is a strange thing to simultaneously long for fairness and forgiveness.  When someone hurts us, we desire justice.  But when we do the hurting, we desire forgiveness.  This dynamic often brings out the worst sort of hypocrisy in us, but that is not to say that the simultaneous longing is wrong in and of itself.  God desires both.  God gives both.  “[W]e have seen his glory…full of grace and truth” (John 1:14).  Being fair and forgiving seems hard for us—they seem almost contradictory.  But God demonstrates His wisdom through the cross, where the justice of God is consistently carried out and the mercy of God is graciously given out.  We get both by faith.