And the sons of Midian; Ephah (vide Isaiah 60:6), and Epher (Bent Ghifar in Hejas), and Hanoch (Hanakye, three days north of Medinah), and Abidah, and Eldaah—the tribes of Abide and Vadaa in the neighborhood of Asir. Keil adds that all these identifications are uncertain. All these were the children of Keturah—six sons, seven grandsons, three great grandsons; in all sixteen descendants.
And Abraham gave all that he had unto Isaac. I.e. constituted him his chief heir, according to previous Divine appointment (Genesis 15:4), and made over to him the bulk of his possessions (Genesis 24:36). But unto the sons of the concubines (Hagar and Keturah), which Abraham had, Abraham gave gifts,—"doubtless established them as youthful nomads" (Lunge) and sent them away from Isaac his son,—Ishmael's dismissal took place long before (Genesis 21:14); probably he then received his portion while he yet lived (i.e. during Abraham's lifetime) eastward, unto the east country (or Arabia in the widest sense; to the east and south-east of Palestine).