Deuteronomy 32:9

9 And his people Jacob became the portion of the Lord, Israel was the line of his inheritance.

Deuteronomy 32:9 Meaning and Commentary

Deuteronomy 32:9

For the Lord's portion [is] his people, Jacob [is] the lot of
his inheritance.
] This is the reason why the Lord so early provided a portion or inheritance for the children of Israel in the land of Canaan; because they were his part, his portion, his inheritance, which he chose by lot for himself, or allotted to himself; whom he chose to be his special and peculiar people; for though all the world is his, he only reserved a part for himself, which he separated from all the rest, and considers as his portion and inheritance, see ( Psalms 33:12 ) ; thus the spiritual Israel of God, as they are his people, whom he has chosen, taken into covenant, given to Christ, and are redeemed and saved by him; they are his part or portion, separated by distinguishing grace from the rest of the world; and are the inheritance of Christ, who is appointed heir of all things, and is an unalienable inheritance; and is obtained by lot, or rather is measured out by a rod or line; by the line of electing grace, by which the church and people of God are circumscribed, marked out, and distinguished from others; and by the line and rule of the sacred Scriptures, which are the measure and standard of faith and practice, of worship and discipline to them.

Deuteronomy 32:9 In-Context

7 Remember the days of old, consider the years for past ages: ask thy father, and he shall relate to thee, thine elders, and they shall tell thee.
8 When the Most High divided the nations, when he separated the sons of Adam, he set the bounds of the nations according to the number of the angels of God.
9 And his people Jacob became the portion of the Lord, Israel was the line of his inheritance.
10 He maintained him in the wilderness, in burning thirst and a dry land: he led him about and instructed him, and kept him as the apple of an eye.
11 As an eagle would watch over his brood, and yearns over his young, receives them having spread his wings, and takes them up on his back:

The Brenton translation of the Septuagint is in the public domain.