Deuteronomy 19:8

8 And if the Lord your God makes wide the limits of your land, as he said in his oath to your fathers, and gives you all the land which he undertook to give to your fathers;

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 For if not, he who has the right of punishment may go running after the taker of life in the heat of his wrath, and overtake him because the way is long, and give him a death-blow; though it is not right for him to be put to death because he was not moved by hate.

7 And so I am ordering you to see that three towns are marked out for this purpose.

8 And if the Lord your God makes wide the limits of your land, as he said in his oath to your fathers, and gives you all the land which he undertook to give to your fathers;

9 If you keep and do all these orders which I give you today, loving the Lord your God and walking ever in his ways; then let three more towns, in addition to these three, be marked out for you:

10 So that in all your land, which the Lord your God is giving you for your heritage, no man may be wrongly put to death, for which you will be responsible.