John 7:24 Jesus says that we are to, “…judge with righteous judgment.” He also taught that we are not to cast our pearls before the swine… that presupposes that in order to know swine, we have to make some sort of judgment. So when we look at just one passage and build an entire belief system off of it, we are most likely going to end up with a skewed belief system. We have to let Scripture interpret Scripture. When Jesus says, “Judge not lest ye be judged” we can know from other Scripture and from the context of that passage itself, that Jesus was not saying that Christians could not judge anything… in-fact just a few verses down in Matthew 7:15 He says that we will know false teachers by their fruit. Again this presupposes a judgment. So what does Jesus mean when He says, “Judge not lest ye be judged”? Well I think the context bears out as well as the teaching in other parts of Scripture that we are not to judge motives. We can judge actions and behavior, but not motives. If someone does something that you don’t think they should do, or maybe they didn’t do something that you thought they should, don’t presume to know why. Say for example, we see a man whose intoxicated; we know he has engaged in the sin of drunkenness, but we don’t know the motive that drove him to it. That’s why 1st Corinthians 10:12 says, “Therefore let him who thinks he stands, take heed, less he fall.”