When you speak you give yourself away.

…How can you speak good things when you are evil (wicked)? For out of the fullness (the overflow, the superabundance) of the heart the mouth speaks. The good man from his inner good treasure flings forth good things, and the evil man out of his inner evil storehouse flings forth evil things. But I tell you, on the day of judgment men will have to give account for every idle (inoperative, nonworking) word they speak. – Matthew 12:34-36 AMP

These were Jesus words to the religious leaders of the day. This was in response to their accusation that He was casting out demons because He had a demon. Their words gave voice to what was in their heart.

All you must do in order to locate people is let them talk for about 5 minutes. If their words are filled with hate, fear, doubt, criticism and pride then it is evident what is in their heart.

(But to hear what someone has to say you must let them talk. This “exercise” also helps us develop the all important skill of listening.) The more that you begin to listen to people the more aware you are of the words that you are speaking, then naturally you begin to judge your heart and words to make sure that they line up to God’s Word.

Your heart and mouth are connected. It is useless to use the excuse, “Yeah, I said that but I really didn’t mean it…” Change what is in our heart and the words that are coming out of our mouths will change.