What doe it look like to live as though we belong to other members of the body of Christ?
"Do not repay anyone evil for evil. Be careful to do what is right in the eyes of everyone. If it 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." (Romans 12:17-21)
We live in a world where disagreements happen. Where people get hurt by the words and actions of other people - whether done intentionally or not. In theses verses, Paul is speaking about how we should respond in these situations.
We are called to respond differently. To respond with grace, kindness, and love, rather than evil, insult, and revenge.
This is another area that emphasizes our need to let God transform us, because we can't do this without Him. We can't choose the response to overcome evil with good in our own strength. It has to be God in us.
The way of responding Paul lays out becomes even more difficult when it comes from a brother or sister in Christ. We expect hurt, revenge, and insult to come from those outside the body of Christ, so we're better prepared to deal with it.
But, when it comes from inside the body of Christ, it seems to hurt more and to provoke a stronger response is us. But, Paul is saying this is how we should act no matter who the other person is. Maybe especially when it's a brother or sister in Christ.