Pleasant words are as a honeycomb, sweet to the mind and healing to the body. Proverbs 16:24 AMPC
You will have what you habitually say, for better or for worse, like it or not. Death and life are in the power of the tongue. Your future is formed by your attitude and the words that issue from your heart.
The upright (honorable, intrinsically good) man out of the good treasure [stored] in his heart produces what is upright (honorable and intrinsically good), and the evil man out of the evil storehouse brings forth that which is depraved (wicked and intrinsically evil); for out of the abundance (overflow) of the heart his mouth speaks. Luke 6:45 AMPC