Deuteronomy 19:9 KJV
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:
Deuteronomy 19:9, King James Version
In context
8 And if the Lord thy God enlarge thy coast, as he hath sworn unto thy fathers, and give thee all the land which he promised to give unto thy fathers;
9 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:
10 That innocent blood be not shed in thy land, which the Lord thy God giveth thee for an inheritance, and so blood be upon thee.