To emphasize the danger of imitating the overcritical Pharisees, Jesus gave a twofold illustration: “A blind man cannot guide a blind man, can he? Both will tumble into a pit, will they not?

Luke 6:39,

It would be ridiculous for a literally blind person to try guiding another blind one over unfamiliar terrain. If there was a pit along the way, surely both would fall into it. When it came to judging their fellowman, the Jewish religious leaders were figuratively “blind.” (Compare Matthew 15:14; 23:16, 24.) They refused to take note of good qualities in the humble common people. On one occasion the Pharisees exclaimed: “This crowd that does not know the Law are accursed people.” (John 7:49) Anyone imitating such a condemnatory attitude is headed for dangerous pitfalls.