You have heard that it was said, ‘You shall love your neighbour and hate your enemy,’ but I say to you, Love your enemies and pray for those who persecute you, so that you may be children of your Father in heaven. [Matt v: 38-48]
Commentary by Marcus J. Borg
There is a habitual conventual way of reading this chapter of sayings as commending passive acceptance of wrongdoing: don’t resist somebody who beats you; go the extra mile; don’t insist on your own rights. Colloquially, be a doormat – let people walk all over you. Moreover, it has most commonly been understood to refer to personal relationships, not to the political realm. Most Christians have not thought of this passage as prohibiting participation in war or capital punishment. Official violence is okay. But all of this is a misunderstanding of the passage whose effect is to domesticate it politically. The powers that be are pleased with the doormat reading.