Do not repay anyone evil for evil. Be careful to do what is right in the eyes of everyone. If it is possible, as far as it depends on you, live at peace with everyone. Do not take revenge, my dear friends, but leave room for God’s wrath, for it is written: “It is mine to avenge; I will repay,” says the Lord. On the contrary:
“If your enemy is hungry, feed him;
if he is thirsty, give him something to drink.
In doing this, you will heap burning coals on his head.”
Do not be overcome by evil, but overcome evil with good.
If you live, you’ll have to deal with difficult people, who at times can make life more difficult. As Christians, we turn to the pages of Scripture for help. And I find Paul’s words here in Romans (click link for fuller context) helpful.
In a nutshell, Christians are simply to do their part. I think we can confront or challenge others, but we’re never to repay evil for evil. I think that includes using violent means, though if someone were attacking someone else, then I think you should do what you can to stop them. The Christians’ dependence on the state as a God-given institution against evil is in play here (again, click link above to see that).
To go into much detail beyond what is written here for me becomes murky. As Christians we should simply try to stick to the basic words of Scripture. But inevitably differences will arise as to whether “if it is possible, insofar as it depends on [us]” means that Christians could ever resort to any kind of violent resistance. I personally have changed my view in leaning toward the position that the Christian can participate in the state, and thus bearing the (small) sword as a police function. And in that, violence should be used sparingly, only as a last resort. There’s no question in the text, that the state in its God-ordained role, does end up resisting evil for the good of Christians and of all society.
The big watchword for me here is simply the directive to live at peace with everyone insofar as that depends on us. That means we might have to put up with things that are not helpful. We’re to leave any vengeance in God’s hands, instead of seeking to exact it ourselves. The state actually ends up being part of God’s exacting of justice, so it seems, when they function correctly. Although sadly to say in too many places in the world Christians and even society in general is left with corrupt governing officials.
The directive is clear whether we like it or not. We’re to do good to our enemies, or to those who make life difficult for us. But I’m not for a minute referring to cases like a woman being beaten by her husband. She needs to separate from him, seek protection from authorities, and I believe she can divorce and remarry on the grounds of desertion, because in effect that’s what he’s done.
This is not a nice comfy part of life. We’d rather avoid all such things together. But it does happen. We do well to go back to the words of Scripture, God’s word, and seek to live by that. To even bless those who persecute us, as the text tells us just before what is quoted above. At the same time, living in peace with others doesn’t mean letting them run roughshod over us. We need wisdom from God to know what that will mean in any given situation, as we seek to remain wise as serpents, yet harmless as doves. In and through Jesus.