You clearly do not understand. Lets look at the whole scripture that so many people misuse:
Matthew 7:1-5 "Do not judge, or you too will be judged.For in the same way you judge others, you will be judged, and with the measure you use, it will be measured to you. Why do you look at the speck of sawdust in your brother's eye and pay no attention to the plank in your own eye? How can you say to your brother, 'Let me take the speck out of your eye,' when all the time there is a plank in your own eye? You hypocrite, first take the plank out of your own eye, and then you will see clearly to remove the speck from your brother's eye.
It's not saying that Judging is wrong, what it is saying is if you judge someone you should not be doing the samething that you are judging the other person for (for that would make you a hypocrite).Just as Ted Haggard condemned Sexual Sin and yet in close doors was committing the very act he was condemning (he refused to look at the sawdust in his own eyes), the church has seen alot of hypocrites.This is what Matthew 7:1-5 is condemning.If we are to judge let us not be hypocrites about it.
1 Corinthians 5:12 What business is it of mine to judge those outside the church? Are you not to judge those inside?
1 Corinthians 6:1-6 If any of you has a dispute with another, dare he take it before the ungodly for judgment instead of before the saints? Do you not know that the saints will judge the world? And if you are to judge the world, are you not competent to judge trivial cases? Do you not know that we will judge angels? How much more the things of this life! Therefore, if you have disputes about such matters, appoint as judges even men of little account in the church! I say this to shame you. Is it possible that there is nobody among you wise enough to judge a dispute between believers? But instead, one brother goes to law against anotherand this in front of unbelievers!
Titus 2:15 These, then, are the things you should teach. Encourage and rebuke with all authority. Do not let anyone despise you.