Jesus says one simple thing about judging: Don’t. The average Christian is the most sharply critical individual. The human mind has a natural tendency to criticize, but spiritually nothing is accomplished by criticism. Only the Holy Spirit is in a position to point out what is wrong in someone, because only the Holy Spirit can do so without causing pain. When humans criticize, they only succeed in weakening and wounding.
It is impossible to enter into communion with God when we are in a critical mood. A critical mindset makes us hard and vindictive and cruel. It leaves us with the flattering idea that we are better than others. Jesus says that his disciples must cultivate the uncritical temper. This cultivation must happen again and again; we can’t do it once and be done with it.
There is no getting away from the penetrating gaze of Jesus. He tells us that if we see a speck in another’s eye, it means we have a plank in our own. Every wrong we see in another Jesus finds in us. Every time we judge another, we condemn ourselves (Romans 2:17–21). We must stop using a measuring stick for other people. There is always one fact more, in every person’s case, about which we know nothing.
When we decide to commit ourselves entirely to Jesus, the first thing God does is give us a spiritual spring-cleaning, showing us what we would be if it weren’t for his grace. After that, there is no possibility of pride left, nothing that allows us to go on criticizing others from a place of superiority. Once I realize what God has done for me, it is impossible to despair of anyone else.