Genesis 15:3

Of such see Genesis 14:14 Ecclesiastes 2:7. And these are opposed to them that are born of a man's body, Job 19:17 Proverbs 31:2 Jeremiah 2:14. Mine heir; either,

1. By nearness of relation, being, as some conceive, descended from Aram the eldest son of Shem. Or,

2. For a recompence of his fidelity: compare Proverbs 17:2. Or, 3. because he only had the exact knowledge and absolute power of all his master's estate, Genesis 24:10, and therefore could easily keep all after his master's death. All which reasons concurring might give occasion for this speech.