Deuteronomy 11:13

And it shall come to pass, if ye hearken diligently unto my commandments which I command you this day, to love Jehovah your God, and to serve him with all your heart and with all your soul,

Deuteronomy 4:29

And from thence ye shall seek Jehovah thy God, and thou shalt find him, if thou shalt seek him with thy whole heart and with thy whole soul.

Deuteronomy 6:17

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

Deuteronomy 10:12

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

Deuteronomy 6:5-6

and thou shalt love Jehovah thy God with all thy heart, and with all thy soul, and with all thy strength.

Deuteronomy 11:8

Keep then all the commandment which I command you this day, that ye may be strong, and enter in and possess the land, whither ye pass over to possess it;

Deuteronomy 11:22

For if ye diligently keep all this commandment which I command you this day to do it, to love Jehovah your God, to walk in all his ways, and to cleave unto him,

Psalm 119:4

Thou hast enjoined thy precepts, to be kept 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 then all the commandment which I command you this day, that ye may be strong, and enter in and possess the land, whither ye pass over to possess it;
Deuteronomy 6:17
Ye shall diligently keep the commandments of Jehovah your God, and his testimonies, and his statutes, which he hath commanded thee.
Psalm 119:4
Thou hast enjoined thy precepts, to be kept diligently.

General references

Leviticus 26:3
If ye walk in my statutes, and observe my commandments and do them,
Deuteronomy 6:17
Ye shall diligently keep the commandments of Jehovah your God, and his testimonies, and his statutes, which he hath commanded thee.
Deuteronomy 15:5
if thou only diligently hearken unto the voice of Jehovah thy God, to take heed to do all this commandment which I command thee this day.
Psalm 119:4
Thou hast enjoined thy precepts, to be kept diligently.