Just living a life that makes one feel "different" is hard enough. The insensitivity of someone actually voicing their opinion that you are different can make a wound that lasts for a lifetime... even though the speaker may never know he has said or done anything wrong.
Words once spoken can never be erased. Whether they were heated words spoken in anger... or careless, criticizing words that cut to the heart of a child... pointing out the differences... or making them feel stupid, those words can never be taken back.
The Bible speaks a lot about the words of our mouth and their power in our lives:
"The tongue also is a fire, a world of evil among the parts of the body. It corrupts the whole person, sets the whole course of his life on fire, and is itself set on fire by hell. (James 3:6)
"Even a fool is thought to be wise if he keeps his mouth closed!"
Unless we can uplift someone... unless we can praise someone... if we can find nothing positive to say... most words are best left unspoken.
Lord, forgive us for the words we have spoken in haste or in anger that have hurt others... whether they were an accident or spoken on purpose.