Deuteronomy 19:9
if you keep all this commandment to do it, which I command you this day, to love Yahweh your God, and to walk ever in his ways; then you shall add three cities more for yourselves, besides these three:
Joshua 20:7-8
They set apart Kedesh in Galilee in the hill country of Naphtali, Shechem in the hill country of Ephraim, and Kiriath Arba (the same is Hebron) in the hill country of Judah.
Deuteronomy 11:22-25
For if you shall diligently keep all this commandment which I command you, to do it, to love Yahweh your God, to walk in all his ways, and to cling to him;
Deuteronomy 12:32
Whatever thing I command you, that you shall observe to do: you shall not add thereto, nor diminish from it.