The judgmental person wants to help other people. “Let me remove the speck from your eye” (Matthew 7:4). But unfortunately, this earnest concern for others can easily lead to criticism, a negative spirit, and an overall bad attitude.
The judgmental person ignores their own faults. They “do not consider the plank in [their] own eye” (Matthew 7:30). Self-improvement is painful. Therefore, instead of dealing with their own issues, the judgmental person focuses on the faults of others.
The judgment of the judgmental person will boomerang back on them (Matthew 7:1-2, 12). There is a principle all throughout scripture, that “what you do comes back on you” (Obadiah 15). So if for no other reason, avoid criticism in order to protect yourself.