Deuteronomy 19:9

New International Version

because you carefully follow all these laws I command you today—to love the Lord your God and to walk always in obedience to him—then you are to set aside three more cities.

Cross References

Deuteronomy 12:32

See that you do all I command you; do not add to it or take away from it.

Deuteronomy 6:5

Love the Lord your God with all your heart and with all your soul and with all your strength.