Deuteronomy 19:8

8 “And if the LORD your God enlarges your territory, as he swore to your ancestors, and gives you all the land he promised them,

Deuteronomy 19:8 Meaning and Commentary

Deuteronomy 19:8

And if the Lord thy God enlarge thy coast
Extend it further than it was upon their first settlement, even carry it as far as the river Euphrates, as in the times of Solomon, ( 1 Kings 4:21 1 Kings 4:24 ) . Jarchi interprets it of such an enlargement as to give them the land of the Kenites, the Kenizzites and Kadmonites:

(as he hath sworn unto thy fathers), and give thee all the land which
he promised to give unto thy, fathers:
Abraham, Isaac, and Jacob; see ( Genesis 15:19 ) ( Genesis 26:3 Genesis 26:4 ) ( Genesis 28:13 Genesis 28:14 ) .

Deuteronomy 19:8 In-Context

6 “If the distance to the nearest city of refuge is too far, an enraged avenger might be able to chase down and kill the person who caused the death. Then the slayer would die unfairly, since he had never shown hostility toward the person who died.

7 That is why I am commanding you to set aside three cities of refuge.

8 “And if the LORD your God enlarges your territory, as he swore to your ancestors, and gives you all the land he promised them,

9 you must designate three additional cities of refuge. (He will give you this land if you are careful to obey all the commands I have given you—if you always love the LORD your God and walk in his ways.)

10 That way you will prevent the death of innocent people in the land the LORD your God is giving you as your special possession. You will not be held responsible for the death of innocent people.