"Thou shalt not carry the name of the Lord thy G-d in vain."

G-d doesn't like his name being associated with bad causes.

It's such a serious violation that it adds: "G-d will not hold blameless anyone who uses his holy name in vain."

So even if you repent -- what Jews called Teshuvah and what Christians call turning to Jesus -- G-d is still going to give you a punishment for breaking this commandment.

But people think all it means is not yelling "Goddamnit!" when you stub your toe.