Deuteronomy 11:13

And it shall come to pass, if ye shall hearken diligently unto 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

Deuteronomy 4:29

But if from there, thou shalt seek the LORD thy God, thou shalt find him if thou seek him with all thy heart and with all thy soul.

Deuteronomy 6:17

Ye shall diligently keep the commandments of the LORD your God and his testimonies and his statutes, which he has commanded thee.

Deuteronomy 10:12

And now, Israel, what does the LORD thy God require of thee, but to fear the LORD thy God, to walk in all his ways and to love him and to serve the LORD thy God with all thy heart and with all thy soul,

Deuteronomy 6:5-6

And thou shalt love the LORD thy God with all thine heart and with all thy soul and with all thy might.

Deuteronomy 11:8

Keep, therefore, all the commandments which I command you this day that ye may be strong and enter in and inherit the land, into which ye go to inherit it

Deuteronomy 11:22

For if ye shall diligently keep all these commandments which I command you, to do them, loving the LORD your God and walking in all his ways, to cleave unto him,

Psalm 119:4

Thou hast commanded us to keep thy precepts diligently.

Treasury of Scripture Knowledge

Summary

And it shall come to pass, if ye shall hearken diligently unto 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,

Bible References

Diligently

Deuteronomy 11:8
Keep, therefore, all the commandments which I command you this day that ye may be strong and enter in and inherit the land, into which ye go to inherit it
Deuteronomy 6:17
Ye shall diligently keep the commandments of the LORD your God and his testimonies and his statutes, which he has commanded thee.
Psalm 119:4
Thou hast commanded us to keep thy precepts diligently.

General references

Leviticus 26:3
If ye walk in my statutes and keep my commandments and do them,
Deuteronomy 6:17
Ye shall diligently keep the commandments of the LORD your God and his testimonies and his statutes, which he has commanded thee.
Deuteronomy 15:5
only if thou carefully hearken unto the voice of the LORD thy God, to keep and to do all these commandments which I command thee this day.
Psalm 119:4
Thou hast commanded us to keep thy precepts diligently.