Nemesis
Nemesis (nem"e*sis) , proper noun
[Latin, from Greek Ne`mesis, orig., distribution, from ne`mein to distribute. See Nomad.]
(Class. Mythology) The goddess of retribution or vengeance; hence, retributive justice personified; divine vengeance.
This is that ancient doctrine of nemesis who keeps watch in the universe, and lets no offense go unchastised.