I am sure this question also crosses your mind as it does mine, "Why should I go out of my way to be kind when I know that it won't do any good? I may even get hurt in the end instead!". Yes that is true, but what if you don't? What if your actions encourage that person to think about what makes you different from everyone else? It could encourage them to find God. More often than not, we do not see how our actions effect the people around us. Have people gotten hurt from being kind? Sadly, the answer is yes. God knows that some people won't change, in Romans 12:18 it says, "If possible, so far as it depends on you, live peaceably with all." See? God acknowledges that some people insist on sticking with evil, we won't be able to rid the world of it just by kindness to all. God is the only one who will be able to get rid of evil at His second coming, but it can be better by listening to God's word. Act with kindness, love, gentleness, peace, and forgiveness.
How do we get this wrong? Sometimes it is just the little things people do that make us irritated, mad, and annoyed at another person. Enemies don't always have to be someone that is out to hurt you, it can just be someone you dislike. Some of my faults are being annoyed with other drivers, getting mad at those in government positions taking away my freedoms, people who always seem to find something to criticize, those who only think of what is comfortable for them and not anyone else, and more. Instead of being irritated and wishing they would just go away, our response should be to pray for them. We don't know their life story, we don't know why they act the way they do. Even if we disagree with someone, we should pray for them and ask God to guide them to the path He wishes and to open their hearts to Him.
On a final note, I feel that when we act this way, we are judging the individual and putting them in a situation where we judge them as being unworthy of our love and kindness. This is also an issue Jesus addresses in his Sermon on the Mount. In Matthew 7 He says, "Judge not, that you be not judged. For with the judgement you pronounce you will be judged, and with the measure you use it will be measured to you. Why do you see the speck that is in your brother's eye, but do not notice the log that is in your own eye?" I feel we do this a lot nowadays. We judge a certain sin as abhorrent without acknowledging the sins in our own life as being just as bad. When he says not to judge, it isn't saying not to confront an individual, but make sure you are of the right mind and attitude to speak. Just as you prepare to take communion so should you prepare to speak to another about sin. We have to self-examine ourselves and acknowledge our own sins, realize that you are a sinful human being as well in need of forgiveness. Do not speak to someone about their sin with a self-righteous attitude. Speak with humbleness, understanding, and love.
Pray over these things:
What do you do that displeases God in dealing with your enemies?
What enemies do you have in your life now?
How can you treat them in the way that is pleasing to God?
How can you include them in your prayers?
How do you approach the uncomfortable situation of speaking to others about sin?