Words can be:
A blessing or a curse
Worthwhile or idle and a waste of time
Words can heal or hurt
Encourage or discourage
Sometimes they can even mean a life saved or lost
But we will have to meet every one of our words again. Will they be worth meeting or will we be ashamed of them?
"But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgement." (Matthew 12:36)