A specific verse pertaining to taking someone to court:

1 Corinthians 6:1-11
1 Does any one of you, when he has a case against his neighbor, dare to go to law before the unrighteous, and not before the saints? 2 Or do you not know that the saints will judge the world? And if the world is judged by you, are you not competent to constitute the smallest law courts? 3 Do you not know that we shall judge angels? How much more, matters of this life? 4 If then you have law courts dealing with matters of this life, do you appoint them as judges who are of no account in the church? 5 I say this to your shame. Is it so, that there is not among you one wise man who will be able to decide between his brethren, 6 but brother goes to law with brother, and that before unbelievers? 7 Actually, then, it is already a defeat for you, that you have lawsuits with one another. Why not rather be wronged? Why not rather be defrauded? 8 On the contrary, you yourselves wrong and defraud, and that your brethren. 9 Or do you not know that the unrighteous shall not inherit the kingdom of God? Do not be deceived; neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor homosexuals, 10 nor thieves, nor the covetous, nor drunkards, nor revilers, nor swindlers, shall inherit the kingdom of God. 11 And such were some of you; but you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus Christ, and in the Spirit of our God.

And this stuff is not easy and is definitely not the way the world thinks.

Luke 6:27-35
27  "But I say to you who hear, love your enemies, do good to those who hate you,  28 bless those who curse you, pray for those who mistreat you.  29  "Whoever hits you on the cheek, offer him the other also; and whoever takes away your coat, do not withhold your shirt from him either.  30  "Give to everyone who asks of you, and whoever takes away what is yours, do not demand it back.  31  "Treat others the same way you want them to treat you.  32  "If you love those who love you, what credit is that to you? For even sinners love those who love them.  33  "If you do good to those who do good to you, what credit is that to you? For even sinners do the same.  34  "If you lend to those from whom you expect to receive, what credit is that to you? Even sinners lend to sinners in order to receive back the same amount.  35  "But love your enemies, and do good, and lend, expecting nothing in return; and your reward will be great, and you will be sons of the Most High; for He Himself is kind to ungrateful and evil men.