Deuteronomy 19:8

8 The LORD your God may expand your country's borders as he promised your ancestors with an oath. He may give you the whole land he promised to give 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 Otherwise, in a rage the relative who has the authority to avenge the death will pursue him. If the place is too far away, the relative may catch up with him and take his life even though he didn't deserve the death penalty, because in the past he never hated the person he killed.

7 This is why I'm commanding you to set aside three cities for yourselves.

8 The LORD your God may expand your country's borders as he promised your ancestors with an oath. He may give you the whole land he promised to give them.

9 He may do this because you faithfully obey all these commands I am now giving you--to love the LORD your God and follow his directions as long as you live. If this happens, you may add three more cities of refuge to these three.

10 That way, innocent people won't be killed in the land that the LORD your God is giving you, and you won't be guilty of murder.