Deuteronômio 32

46 And he said to them : Set your hearts on all the words, which I testify to you this day: which you shall command your children to observe and to do, and to fulfil all that is written in this law:

47 For they are not commanded you in vain, but that every one should live in them, and that doing them you may continue a long time in the land whither you are going over the Jordan to possess it.