Words Are Powerful Speech

Speech is the tool of creation. The ability to communicate one's thoughts and feelings through words -- is unique to human beings. It can be a tremendous blessing, but it's also ripe for abuse. Through speech we can build individuals and the world. We can praise, encourage, and give others confidence. By making others feel important, we build them up, as if to say, "Your existence is necessary".

On the other hand, speech can also be used to destroy. Words like "you're worthless" wipes out a person’s self-esteem. As King Solomon says, "Life and death are in the hands of the tongue" (Proverbs 18:21). The Talmud (Arachin 15b) explains that negative speech is even worse than a sword ― since it kills many people, even at great distance". 

Beyond the individual destruction, we have all seen the power of gossip ― a vicious rumor ― to tear apart relationships, families, and even entire communities. 

Lashon Hara is so powerful - By Rabbi Meir Ben Abu: