^19 (A)You shall also teach them to your sons, speaking of them when you sit in your house, when you walk along the road, when you lie down, and when you get up. ^20 (B)And you shall write them on the doorposts of your house and on your gates, ²¹ so that ^(C)your days and the days of your sons may be increased on the land which the Lord swore to your fathers to give them, as ^[a](D)long as the heavens are above the earth.