Christian: Why do you worry about the sins of others then focusing on the sins you have committed?

A Christian first and foremost needs to focus on their own salvation. It's very easy to get caught up in other people's business. One should never preach and then themselves be disqualified from the race. The Bible also says, however, that if a Christian doesn't reach out to the hurting or the lost or the sinner, they need to question whether they are truly saved. Simply saying I'm saved and and then doing nothing to reach out to others is selfish and dis-obedient.