Judge not lest ye be judged. What does that mean exactly? I remember when I was in my teens my mother turned to me and said, " You know sin is personal." I looked at her not understanding what she meant, and she began to explain, "If a person is doing something that in their heart they believe not to be a sin, then God will not judge what they are doing as a sin, because they are pure in heart." Therefore only God can judge whether someone is sinning because He is the only one that knows what is in that persons heart. We cannot judge whether another person is sinning because we don't know what is in their heart. When you judge another for a sin that you perceive they are committing, your are placing in your heart a sin for which God may judge you for if committed. So if two different people are committing the same act, one may be sinning and the other not. It's what they believe. It's personal. God knows. Don't be so quick to condemn and judge, because you may actually be doing that to yourself.