Deuteronomy 32:9
For the LORD'S portion is his people; Jacob is the lot of his inheritance.
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.