In this respect, forgiveness is the exact opposite of vengeance, which acts in the form of re-acting against an original trespassing, whereby far from putting an end to the consequences of the first misdeed, everybody remains bound to the process, permitting the chain reaction contained in every action to take its unhindered course. In contrast to revenge, which is the natural, automatic reaction to transgression and which because of the irreversibility of the action process can be expected and even calculated, the act of forgiving can never be predicted; it is the only reaction that acts in an unexpected way and thus retains, though being a reaction, something of the original character of action. Forgiving, in other words, is the only reaction which does not merely re-act but acts anew and unexpectedly, unconditioned by the act which provoked it and therefore freeing from its consequences both the one who forgives and the one who is forgiven. The freedom contained in Jesus’ teachings of forgiveness is the freedom from vengeance, which encloses both doer and sufferer in the relentless automatism of the action process, which by itself need never come to an end.
– Hannah Arendt