So shall my word be that issues forth from my mouth. It will not return to me unfulfilled, but it will accomplish my purpose and achieve what I sent it forth to do.
A good man produces good from the store of goodness in his heart, whereas an evil man produces evil from the store of evil within him. For the mouth speaks from the abundance of the heart.
He brought you low, allowing you to suffer from hunger. He then fed you with manna, something with which your fathers were not familiar, so that you might come to know that man does not live by bread alone, but man lives by every word that comes forth from the mouth of the Lord.
Do not let this book of the law be absent from your mouth; meditate upon it day and night, so that you might carefully observe everything that is written in it. Then you will prosper and be successful.