Have you ever heard someone make a nasty comment or off-color joke and then dismiss it by saying, "I'm only joking"? Jesus said, "The good person out of the good treasure of his heart produces good, and the evil person out of his evil treasure produces evil, for out of the abundance of the heart his mouth speaks." In other words, our words betray us, showing what we truly hold in our hearts. Fortunately, for all of us who want to change the way we speak, there's hope: we can change what's in our hearts by changing what we treasure. Here's how...