Буття 25:5

Before his death, Abraham made a final disposition of his property. Isaac, the only son of his marriage with Sarah, received all his possessions. The sons of the concubines (Hagar and Keturah) were sent away with presents from their father's house into the east country, i.e., Arabia in the widest sense, to the east and south-east of Palestine.

The sacred historian, in this chapter, I. Takes his leave of Abraham, with an account, I. Of his children by another wife (Gen 25:1-4). 2. Of his last will and testament (Gen 25:5, Gen 25:6). 3. Of his age, death, and burial (Gen 25:7-10). II. He takes his leave of Ishmael, with a short account, 1. Of his children (Gen 25:12-16). 2. Of his age and death (Gen 25:17, Gen 25:18). III. He enters upon the history of Isaac. 1. His prosperity (Gen 25:11). 2. The conception and birth of his two sons, with the oracle of God concerning them (Gen 25:19-26). 3. Their different characters (Gen 25:27, Gen 25:28). 4. Esau's selling his birthright to Jacob (Gen 25:29-34).

25:5-6 Abraham loved all his sons, so before he died, he gave them gifts and sent them away as he had sent Ishmael (21:8-14). In this way, he preserved Isaac’s position as his heir.