Romans 14:13 - Therefore let us stop passing judgement on one another. Instead, make up your mind not to put any stumbling block or obstacle in your brothers way.
In this chapter Paul speaks of the differences of people’s faith and what it allows them to do. He talks about how for one man it is ok to eat something, say meat for example, but for another man it is not. In these examples it is not the meat itself that is any different, but it is the heart and what each man believes.
Paul says that if in your heart you do not consider something bad, then it is not, but if in your heart you consider it bad, then for you it is sin. It all comes down to a heart attitude. Paul even goes as far as saying that if you have a question in your mind whether something is right or wrong then for you it is sin; stay away from it.
So each person must decide for himself what is right and wrong. You have the Holy Spirit inside of you. Let the Spirit guide you into all Truth, because God judges the heart. Make sure your heart is right in everything you do.
Then comes the next part. “Stop passing judgement on one another.” Just because you are convicted of something and do not do it, does not mean that same conviction is for everyone else. Let each person, with the Holy Spirit inside them, make a decision for themselves what is right and wrong.
This being said, we must also be careful. People are watching you. They will see what you are doing. It may not be a sin for you, but it could be for them. If they do something that they feel is wrong because they were watching you, it will come back on you. We are to avoid all appearance of evil (1 Thessalonians 5:22). If you truly Love others you will not do anything that could cause them to stumble.