: Sarah dies in Hebron and Abraham buys land - the cave of Makpelah - off Ephron a son of Heth to serve as a burial place for his dead. Aside the fact he now legally owns a portion of land (the transaction was carried out in agreement with the sons of Heth) in the spread Yahweh promised him, I wonder if there are significances.
Bereshith/Genesis 24: Abraham performs his duty to his son Yitshaq/Isaac by seeking out a wife - Ribqah/Rebekah - for him and there is an introduction of Laban's opportunistic nature (vs. 29-31).
Bereshith/Genesis 25: Abraham dies. Ribqah gives birth to twins: Esaw/Esau and Ya'aqob/Jacob who later became Yisrael/Israel.
Conclusions: From the general outline, it appears Abraham bought land. builds a house (Yitshaq and Ribqah), then dies.