Deuteronomy 19:9

when thou keepest all this command to do it, which I am commanding thee to-day, to love Jehovah thy God, and to walk in His ways all the days -- then thou hast added to thee yet three cities to these three;

Joshua 20:7-8

And they sanctify Kedesh in Galilee, in the hill-country of Naphtali, and Shechem in the hill-country of Ephraim, and Kirjath-Arba (it is Hebron), in the hill-country of Judah;

Deuteronomy 11:22-25

For, if ye diligently keep all this command which I am commanding you -- to do it, to love Jehovah your God, to walk in all His ways, and to cleave to Him,

Deuteronomy 12:32

The whole thing which I am commanding you -- it ye observe to do; thou dost not add unto it, nor diminish from it.

Treasury of Scripture Knowledge

Summary

If thou shalt keep all these commandments to do them, which I command thee this day, to love the LORD thy God, and to walk ever in his ways; then shalt thou add three cities more for thee, beside these three:

Then shalt thou

Bible References

If thou shalt

Deuteronomy 11:22
For, if ye diligently keep all this command which I am commanding you -- to do it, to love Jehovah your God, to walk in all His ways, and to cleave to Him,
Deuteronomy 12:32
The whole thing which I am commanding you -- it ye observe to do; thou dost not add unto it, nor diminish from it.

Then shalt thou

Joshua 20:7
And they sanctify Kedesh in Galilee, in the hill-country of Naphtali, and Shechem in the hill-country of Ephraim, and Kirjath-Arba (it is Hebron), in the hill-country of Judah;