Deuteronomy 6:17
You shall diligently keep the commandments of the LORD your God, and his testimonies, and his statutes, which he has commanded you.
Nave's Topical Index—AKJV

Deuteronomy 11:13
And it shall come to pass, if you shall listen diligently to my commandments which I command you this day, to love the LORD your God, and to serve him with all your heart and with all your soul,
Nave's Topical Index—AKJV