Deuteronomy 6:1-2

Now this is the commandment—the statutes and the ordinances—that the LORD your God charged me to teach you to observe in the land that you are about to cross into and occupy, so that you and your children and your children's children may fear the LORD your God all the days of your life, and keep all his decrees and his commandments that I am commanding you, so that your days may be long.