Until the coming of the Redeemer, there is no person on earth without fault. One person fails in one area, and another in a different one.
We don't appreciate someone who pries our faults and highlights each one with a red pencil. Therefore, we know it's not right to emphasize and magnify the faults of others.
This is how everyone should relate to each other. But especially when it comes to your spouse and your own family members.