Deuteronomy 4:6
Keep therefore and do them; for this is your wisdom and your understanding in the sight of the nations, which shall hear all these statutes, and say, Surely this great nation is a wise and understanding people.
Torrey's Topical Textbook—AKJV

Deuteronomy 6:2
That you might fear the LORD your God, to keep all his statutes and his commandments, which I command you, you, and your son, and your son's son, all the days of your life; and that your days may be prolonged.
Torrey's Topical Textbook—AKJV