Jesus doesn't mean we should ignore wrongdoing, but we should not be so worried about others sins that we overlook our own. We often rationalize our sins by pointing out the same mistakes in others. What kinds of specks in others' eyes are the easiest for you to criticize? Remember your own "logs" when you feel like criticizing, and you may find that you have less to say.
(from Life Application Study Bible, 10/15/2012)