What we fail to understand

Words are more powerful than we think especially when spoken they emit frequencies from sound waves that affect our bodies in ways we fail to understand.Think about what you say before you say someone is fat,lazy,incapable,and worthless.Many people in today's society attend church. often times pastors say declare it from your mouth and so shall it be then my question is why don't we declare growth,declare world wide love, declare peace and abundance ? Nothing is wrong to acknowledge a problem but we must seek instead to find solutions.