As many of you may know from the Christianity debate thread, I'm a Christian (with all the trimmings). Hence, I follow God and his commandments etc. What bugs me at the moment is that one of the commandments is that I should not use the name of God in vain - that is, saying it as a exclamation or a curse or without correct meaning. I follow this perfectly well in life, but in my writing, I keep coming up against a barrier; my character's can't exclaim naturally without using God's name at least once.
It's been a personal problem for a long time, and I've lived with it, but recently I've been debating with myself about the nature of the commandment. If it's used for characterisation, does that mean that I'm saying it, or that a character I've manifested has a certain style and therefore says it? For example, having my characters swear on occasion doesn't mean that I'm swearing. But that brings about issues, like the way I never use the F word either in real life or in writing.
So I'm stuck. I write sci-fi and fantasy, and have been using a fictional deity as my curse-word for a long time (Ath'Dar). But in my universe, human society has not moved far away from what it was before, despite the changes in technology and the like. So I want them to be able to say 'Oh, God' and similar material, because it's a natural human thing, whether it's right or wrong. But how can I find a righteous loophole through my faith to be able to use it? Or, is there any other technique I can use for natural exclamation?