Punishing God's enemies is fair because they killed God's holy people and prophets. Since they shed blood, they must drink blood. The principle of lex talionis (the law of retribution), which is the basis of Roman and Jewish law, shows that God is completely fair in judging and rewarding people based on their actions (see Revelation 2:23; 11:18; 14:13; 18:6; 20:12, 13; 22:12).