"...They aren't insulting Him, but it just doesn't feel right."Scripture that tells us to "not take the name of the Lord your God in vain, for the Lord will not hold him guiltless who takes his name in vain" (Exodus 20:7). This is the 3rd of the Ten Commandments, and it tells us not to take a deceptive oath in God's name; swear using his name or use his name disrespectfully. While your friends may not be explicitly using God's name, when they impersonate God, they are most likely doing so in a disrespectful manner. God's name represents his holy character and attributes, and for this reason, it should never be taken lightly.
So what now? If someone is trying to impersonate God and it doesn't feel right to you, that's a good sign. That's the Holy Spirit at work in your heart, guiding you toward right and away from wrong. I'd recommend that you pray for courage to tell your friends as kindly but firmly as possible that what they are doing is offensive to you and your faith, and for those reasons, they should stop altogether.
For a bit more information on this subject, visit this website.
This is an excerpt from the article you'll find there.
There is a larger sense in which people today take the Lord’s name in vain. Those who name the name of Christ, who pray in His name, and who take His name as part of their identity, but who deliberately and continually disobey His commands, are taking His name in vain. Jesus Christ has been given the name above all names, at which every knee shall bow (Philippians 2:9-10), and when we take the name “Christian” upon ourselves, we must do so with an understanding of all that signifies. If we profess to be Christians, but act, think, and speak in a worldly or profane manner, we take His name in vain. When we misrepresent Christ, either intentionally or through ignorance of the Christian faith as proclaimed in Scripture, we take the Lord’s name in vain. When we say we love Him, but do not do what He commands (Luke 6:46), we take His name in vain and are in danger of hearing Him say to us “I never knew you. Away from me” in the day of judgment (Matthew 7:21-23).[Answered by Pastor HM]
