Hey /pol/. I know that turn the other cheek is a very misunderstood phrase, that had a completly different cultural context during the time of Jesus. I know about that one, but can some knowledgable christanon post about the meanings of other commonly used christian phrases like "whoever forces you to go one mile, walk two" and "whoever sues for your shirt, give him your mantle too" or whatever that was.
I can talk about the turn the other cheek phrase.
In the middle east even today and not so long ago in Europe, using the left hand was sinful. I think this basically comes from them collectively deciding that the left hand was reserved for all of the filthy stuff you do. Toilet paper and modern sanitation didn't exist after all. So over time it turned into a commandment/superstition.
Anyway so you would just never use your left hand to slap someone. So the only hand you can use to slap someone was your right hand. Romans occupied Palestine and as a sign of submission would slap people. A backhanded slap with the right hand to humiliate them and to show that they are not equal. "A slap to the face" is still a metaphor for one of the gravest insults you can do to other people. However if you turned the other cheek (your left one) towards the Roman Soldier, a backhanded slap would turn into an openfaced slap. That was less humiliating and made you an equal to him. It's smart passive-aggressive resistance against an overwhelming force. And not mindless stupid pacifism "If you let your enemy slap you, you win".
I know the other phrases have similar meanings, but I want to know the exact ones and not just speculate about their meaning.