18 So keep these words deep in your heart and in your soul, and have them fixed on your hand for a sign and marked on your brow;
19 Teaching them to your children, and talking of them when you are at rest in your house or walking by the way, when you go to sleep and when you get up:
20 Writing them on the pillars of your houses and over the doors of your towns:
21 So that your days, and the days of your children, may be long in the land which the Lord by his oath to your fathers said he would give them, like the days of the eternal heavens.