The pharisees and sanhedrin would wait to see people fail, and be punished by God. As Christians are we supposed to do the same thing? Of course not! We should encourage those who struggle instead of condemning them. I think this could be why Jesus told us not to judge one another.

Judge not, that you be not judged. For with the judgment you pronounce you will be judged, and with the measure you use it will be measured to you. Why do you see the speck that is in your brother’s eye, but do not notice the log that is in your own eye? Or how can you say to your brother, ‘Let me take the speck out of your eye,’ when there is the log in your own eye? You hypocrite, first take the log out of your own eye, and then you will see clearly to take the speck out of your brother’s eye.
(Mat 7:1-5)

So which side of God are you on? Are you judging and condemning? Or are you loving and encouraging?