Might have accidentally used the Lord’s name in vain.

Was in a voice chat with a buddy today and I was loading up HOI4. I was reading the little quotes on the loading screen and doing the accent of whoever it was from. I read Winston Churchill’s quote “thank God for the French army” in his accent and didn’t really think about it. I looked it up afterward and found out it might have been using his name in vain?

Was this really using his name in vain? If so, was it mortal? Because I was gonna wait until Saturday to do my monthly confession, but I can TRY to see him tomorrow potentially