Your words

"... Let me tell you something:  Every one of these careless words is going to come back to haunt you.  There will be a time of Reckoning.  Words are powerful; take them seriously.  Words can be your salvation.  Words can also be your damnation."  Matthew 12:34-37 MSG

Here is proof, spoken from Jesus himself, that words matter!  Therefore, like he says, "Take them seriously", for they will either do one of two things:  excel you into the greatness and glory of God, or run you right into your own grave.

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Dependent on God

But we beseech and earnestly exhort you brethren, that you excel to make it your ambition and endeavor to live quietly and peacefully, to mind your own affairs, and to work with your hands, being dependent on nobody [self-supporting] and having need of nothing!  Adapted from 1 Thessalonians 4:10-12

First off, work hard to take care of you and yours, and count on no one in this world to take care of your responsibilities for you.  Secondly, pursue peacefulness in all your endeavors, and let no mortal man rule your heart.  And most importantly, be completely dependent on God, because with Him no middleman is necessary - He will provide your every need.