We are told in the scriptures that we should be careful to not judge others lest we be judged. Which means that if we are to judge someone then we will be judged the same manner as we just did.
Its hard to judge someone who is doing when you doing the exact same thing. Which I am guilty of times doing.
Judging others causes hurt feelings, friendships to be broken, families torn apart, wars to start, to escalate into bigger problems that just started with one little incident.
We should apologize when passing judgment to someone especially when we know we have done wrong.
The Lord is the one true judge and looks on the inward appearance while us as humans tend to look at the outside appearance and not know the reason behind the way the person is acting. We should reserve the judgment to those who are in authority to do so.