Deuteronomy 6:1-2

New King James Version

The Greatest Commandment

6 “Now this is ^(A)the commandment, and these are the statutes and judgments which the Lord your God has commanded to teach you, that you may observe them in the land which you are crossing over to possess, ^2 (B)that you may fear the Lord your God, to keep all His statutes and His commandments which I command you, you and your son and your grandson, all the days of your life, ^(C)and that your days may be prolonged.