Deuteronomy 32:45-47

Moses finished reciting all these words to all Israel. He said to them, “Set your heart to all the words which I testify to you today, which you shall command your children to observe to do, all the words of this law. For it is no vain thing for you, because it is your life, and through this thing you shall prolong your days in the land, where you go over the Jordan to possess it.”