From Lloyd-Jones’ teachings on Matthew 7:1 (“Judge not.”):
Now there is all the difference in the world between being critical and being hypercritical. True criticism is an excellent thing. Unfortunately there is very little of it. But true criticism of literature, or art, or music, or anything else, is one of the highest exercises of the human mind. Criticism in a true sense is never merely destructive; it is constructive, it is appreciation. There is all the difference in the world between exercising criticism and being hypercritical. The man who is guilty of judging, in the sense in which our Lord uses the term here, is the man who is hypercritical, which means that he delights in criticism for its own sake and enjoys it. I am afraid I must go further and say that he is a man who approaches anything which he is asked to criticize expecting to find faults, indeed, almost hoping to find them.
The simplest way, perhaps, of putting all this is to ask you to read 1 Corinthians 13. Look at the negative of everything positive which Paul says about love. Love ‘hopeth all things’, but this spirit hopes for the worst; it gets a malicious, malign satisfaction in finding faults and blemishes. It is a spirit that is always expecting them, and is almost disappointed if it does not find them; it is always on the lookout for them, and rather delights in them. There is no question about that, the hypercritical spirit is never really happy unless it finds these faults. And, of course, the result of all this is that it tends to fix attention upon matters that are indifferent and to make of them matters of vital importance.
If we ever know the feeling of being rather pleased when we hear something unpleasant about another, that is this wrong spirit. If we are jealous, or envious, and then suddenly hear that the one of whom we are jealous or envious has made a mistake and find there is an immediate sense of pleasure within us, that is it. That is the condition which leads to this spirit of judgment.
– MLJ, Studies in the Sermon on the Mount, pp. 432-33.