Deuteronomy 11:13

And it shall come to pass, if ye will hearken, unto my commandments, which, I am commanding you to-day, - to love Yahweh your God, and to serve him, with, all your heart, and with all your soul,

Deuteronomy 4:29

If thou shalt seek from thence, Yahweh thy God, then shalt thou find him, - when thou shalt search after him with all thy heart, and with all thy soul.

Deuteronomy 6:17

Ye shall, keep, the commandments of Yahweh your God and his testimonies and his statutes which he hath commanded thee;

Deuteronomy 10:12

Now, therefore, O Israel, what is, Yahweh thy God, asking of thee, - but to revere Yahweh thy God to walk in all his ways, and to love him, and to serve Yahweh thy God, with all thy heart, and with all thy soul:

Deuteronomy 6:5-6

Thou shalt therefore love Yahweh thy God, - with all thy heart and with all thy soul, and with all thy might;

Deuteronomy 11:8

Therefore shall ye keep all the commandment which I am commanding thee, today, - that ye may be strong, and so enter and possess the land, whither ye are passing over to possess it;

Deuteronomy 11:22

For if ye do, indeed keep, all this commandment which I am commanding you to do it, - to love Yahweh your God, to Walk in all his ways, and to cleave unto him,

Psalm 119:4

Thou, hast commanded thy precepts, that they should be diligently kept.

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
Therefore shall ye keep all the commandment which I am commanding thee, today, - that ye may be strong, and so enter and possess the land, whither ye are passing over to possess it;
Deuteronomy 6:17
Ye shall, keep, the commandments of Yahweh your God and his testimonies and his statutes which he hath commanded thee;
Psalm 119:4
Thou, hast commanded thy precepts, that they should be diligently kept.

General references

Leviticus 26:3
If, in my statutes, ye will walk, - And my commandments, ye will observe, and do them,
Deuteronomy 6:17
Ye shall, keep, the commandments of Yahweh your God and his testimonies and his statutes which he hath commanded thee;
Deuteronomy 15:5
only if thou do hearken unto the voice of Yahweh thy God, - to observe to do - all this commandment which I am commanding time to-day.
Psalm 119:4
Thou, hast commanded thy precepts, that they should be diligently kept.