Where you are today is a direct result of what you have been speaking.  We are powerful created beings that operate the same way that the God of Heaven does because we were created to be just like Him. One of the reasons Jesus came to Earth was to be an example of the New Covenant and show us what we were really made of.  He had to recover the authority that was lost in the Garden.  Most Christians think it is religion and futility to guard our words, but it is a Kingdom dynamic that can shift the entire course of your life.