In the readings for the 31st Sunday in Ordinary Time, God simply tells us that when we take His word to heart, it produces good things in our hearts and therefore in our lives. When we fail to live that word, we fail to realize the happiness and peace that God's word is meant to bring.
In the first reading from Malachi, the Lord speaks to the leaders of the Jews and tells them: "You have turned aside from the way, and have caused many to falter by your instruction."