This has got nothing to do with being into religion or not. If you're in a hierarchy where this sort of thing can be addressed (other hierarchies include the workplace or the school system), carry out communication to the right stages of the hierarchy. This can be directly to the one acting out of order, or this can be higher up, depending on the case. If you're on your own - focus on your own perspective and your own emotions, and don't let yourself be fooled by anyone else: You know what you want to say and what you mean, and that's not going away, regardless of laughter or ill intent from others. Basically, this is an exercise in figuring out what you can control and what you can't control, and then acting accordingly to improve your situation after figuring it out.