For these things have not been entrusted to you to no purpose, but so that each one would live by them, and so that, in doing these, you may continue for a long time in the land, which you will enter upon crossing the Jordan in order to possess it.
Other versions
King James Version
For it is not a vain thing for you; because it isEnglish Standard Version
For it is no empty word for you, but your very life, and by this word you shall live long in the land that you are going over the Jordan to possess."New International Version
They are not just idle words for you-they are your life. By them you will live long in the land you are crossing the Jordan to possess."