Hi Brockman, I think (and I say this with utmost respect to them) that some of my fellow posters were a bit… rash… in their responses to you.
You are beginning the conversion process to becoming Catholic (and welcome home by the way!). That entails certain obligations, such as attending Mass. However, it also entails certain restrictions. One of those restrictions is that, while we are allowed to attend and OBSERVE the worship of others, we are not to ACTIVELY PARTICIPATE. I’m guessing this “Christmas play” was to take part in conjunction with some Baptist Christmas service.
That makes it sketchy. You’re only beginning the conversion process, sure, but at the same time, you’re not to participate in other denominations’ worship because it gives the appearance that you accept their worship as valid and equal to the mass (aka, causes scandal to the church). So yes, you have some theological ground on which to object to taking a role in this play.
That being said, it’s not the end of the world either. As you’ve done here, you should start all of these situations by having a RESPECTFUL and LOVING talk with your parents. You should explain that, as you no longer hold Southern Baptist views, that you are uncomfortable with participating in the play and feel like you’d be insulting the other congregation members by doing so. Tell them that your respect for their faith is what drives you to NOT want to falsely participate. Then, if they insist anyway, go ahead and participate… at least then you’ll know they had your (name removed by moderator)ut and made their informed decision.
Also, your parents are uncomfortable with you becoming Catholic, but have you thought about explaining the rules of posting and then recommending that they come here to learn a bit about your choice? Perhaps dispelling the smoke will show that there are no demons hiding in the dark…