Proverbs 27:1 Boast not thyself of to morrow; for thou knowest not what a day may bring forth.
2 Let another man praise thee, and not thine own mouth; a stranger, and not thine own lips.
This chapter starts by telling us that we are promised another day so we should not boast about what we are fixing to do tomorrow. Even if we have another day we do not know what the day will hold for us so we do not need to dead set on what we plan to do. The next verse tells us that bragging on ourselves is letting pride take control of our lives. If others gives us praise then people accept it because it comes from an impartial person. These verse have a simple message and that not brag about yourself or go around telling people how righteous you are.