Deuteronomy 11:13

"And it will happen [that] if you listen carefully to my commandments that I [am] commanding you {today}, to love Yahweh your God, and to serve him with all [of] your heart and with all [of] your soul,

Deuteronomy 4:29

But from there you shall seek Yahweh your God and will find him, if you seek him with all your heart and with all your soul.

Deuteronomy 6:17

You shall diligently keep the commandments of Yahweh your God and his legal provisions and his rules that he has commanded you.

Deuteronomy 10:12

And now, Israel, what [is] Yahweh your God asking from you, except to revere Yahweh your God, to go in all his ways and to love him and to serve Yahweh your God with all your heart and with all your soul,

Deuteronomy 6:5-6

And you shall love Yahweh your God with all of your heart and with all of your soul and with all of your might.

Deuteronomy 11:8

"And you must keep all [of] the commandments that I [am] commanding you {today}, so that you may have strength and [you may] go and [you may] take possession of that land {to which you are crossing} to take possession of it,

Deuteronomy 11:22

Yes, if you diligently keep all this commandment that I [am] commanding you {to observe it}, by loving Yahweh your God {by walking in} all his ways and by holding fast to him,

Psalm 119:4

You have commanded your precepts, that [we] should keep [them] 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
"And you must keep all [of] the commandments that I [am] commanding you {today}, so that you may have strength and [you may] go and [you may] take possession of that land {to which you are crossing} to take possession of it,
Deuteronomy 6:17
You shall diligently keep the commandments of Yahweh your God and his legal provisions and his rules that he has commanded you.
Psalm 119:4
You have commanded your precepts, that [we] should keep [them] diligently.

General references

Leviticus 26:3
" 'If you walk in my statutes and you keep my commands and you do them,
Deuteronomy 6:17
You shall diligently keep the commandments of Yahweh your God and his legal provisions and his rules that he has commanded you.
Deuteronomy 15:5
If only you listen well to the voice of Yahweh your God {by observing diligently} all of these commandments that I [am] commanding you {today}.
Psalm 119:4
You have commanded your precepts, that [we] should keep [them] diligently.