“… if you rejoice in revenge, torture, and war […] you cannot say you're a follower of the guy who explicitly said "love your enemies" and "do good to those who hate you". The next line isn't, "And if that doesn't work, send a titanium-fanged dog to rip his nuts off". Jesus lays on that hippie stuff pretty thick! He has lines like, "do not repay evil with evil", and "do not take revenge on someone who wrongs you."”

Balsamo the Magician (or The Memoirs of a Physician) by Alex. Dumas (1891)

1950s, Loving Your Enemies (November 1957)
Context: The Greek language comes out with another word for love. It is the word agape. …agape is something of the understanding, creative, redemptive goodwill for all men. It is a love that seeks nothing in return. It is an overflowing love; it’s what theologians would call the love of God working in the lives of men. And when you rise to love on this level, you begin to love men, not because they are likeable, but because God loves them. You look at every man, and you love him because you know God loves him. And he might be the worst person you’ve ever seen. And this is what Jesus means, I think, in this very passage when he says, "Love your enemy." And it’s significant that he does not say, "Like your enemy." Like is a sentimental something, an affectionate something. There are a lot of people that I find it difficult to like. I don’t like what they do to me. I don’t like what they say about me and other people. I don’t like their attitudes. I don’t like some of the things they’re doing. I don’t like them. But Jesus says love them. And love is greater than like. Love is understanding, redemptive goodwill for all men, so that you love everybody, because God loves them. You refuse to do anything that will defeat an individual, because you have agape in your soul. And here you come to the point that you love the individual who does the evil deed, while hating the deed that the person does. This is what Jesus means when he says, "Love your enemy." This is the way to do it. When the opportunity presents itself when you can defeat your enemy, you must not do it.

the Finn's voice asked.
Neuromancer (1984)

Source: Abarat

1960s, Letter from a Birmingham Jail (1963)
Context: But though I was initially disappointed at being categorized as an extremist, as I continued to think about the matter I gradually gained a measure of satisfaction from the label. Was not Jesus an extremist for love: "Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you." Was not Amos an extremist for justice: "Let justice roll down like waters and righteousness like an ever flowing stream." Was not Paul an extremist for the Christian gospel: "I bear in my body the marks of the Lord Jesus." Was not Martin Luther an extremist: "Here I stand; I cannot do otherwise, so help me God." And John Bunyan: "I will stay in jail to the end of my days before I make a butchery of my conscience." And Abraham Lincoln: "This nation cannot survive half slave and half free." And Thomas Jefferson: "We hold these truths to be self evident, that all men are created equal..." So the question is not whether we will be extremists, but what kind of extremists we will be. Will we be extremists for hate or for love? Will we be extremists for the preservation of injustice or for the extension of justice? In that dramatic scene on Calvary's hill three men were crucified. We must never forget that all three were crucified for the same crime — the crime of extremism. Two were extremists for immorality, and thus fell below their environment. The other, Jesus Christ, was an extremist for love, truth and goodness, and thereby rose above his environment. Perhaps the South, the nation and the world are in dire need of creative extremists.

Source: The Devil and Miss Prym

Concepts

Source: Lock and Key

Source: One Simple Act: Discovering the Power of Generosity