…is powerful.  

Whether you believe that you're shaping the spiritual atmosphere around you or just guiding your thoughts and the thoughts of others, most people would agree that spoken words are important. In one scene, God formed the universe with words, then created us to resemble Him. This must have some significance. 

Thus, a quick check-up:

What do you say in jest?

What do you mutter to yourself in frustration?

What comes out of your mouth when you are angry or sad?

It could be worth adjusting.