Deuteronomy 32:9

כי חלק ה' עמו FOR THE PORTION OF THE LORD, HIS PEOPLE — Why all this? (Why did He save them from destruction?) because His portion was comprised in them and was destined to come forth. And who is His portion? עמו HIS PEOPLE. And Who is His people? יעקב חבל נחלתו JACOB THE ROPE OF HIS INHERITANCE — and he is the third amongst the patriarchs, who is endowed with three merits: the merit of his grandfather, the merit of his father and his own merit thus altogether three — like a rope (חבל) that is made up of three strands. Only he and his sons became His inheritance, not, however, Ishmael, Abraham’s son, nor Esau, Isaac’s son (cf. Sifrei Devarim 312:3),

For the Lord’s portion is his people; Ya῾aqov is the lot of his inheritance.

כִּ֛י חֵ֥לֶק יְהֹוָ֖ה עַמּ֑וֹ        יַעֲקֹ֖ב חֶ֥בֶל נַחֲלָתֽוֹ׃