Exodus 20:7
The Message (MSG)
7 No using the name of God, your God, in curses or silly banter; God won’t put up with the irreverent use of his name.
God's name is special because it carries His personal identity. Using it frivolously or in a curse is so common today that we may fail to realize how serious it is. The way we use God's name conveys how we really feel about Him. We should respect His name and use it appropriately, speaking in praise and worship rather than in curse or jest. We should not take lightly the abuse or dishonor of His name.
Joe