The sons of Midian: Ephah, Epher, Hanoch, Abida, and Eldaah. All these were the descendants of Keturah.
All nations but the seed of Abraham are already shaken off from this genealogy: they have no part nor lot in this matter. The Lord's portion is his people. Of them he keeps an account, knows them by name; but those who are strangers to him he beholds afar off.
Commenting on 1 Chronicles 1:28-54
1Ch 1:29-33 The names of the generations (תּולדות) of Ishmael (Hebr. Yishma'el) correspond to those in Gen 25:12-15, and have been there explained. In 1Ch 1:32. also, the names of the thirteen descendants of Abraham by Keturah, six sons and seven grandsons, agree with Gen 25:1-4 (see commentary on that passage); only the tribes mentioned in Gen 25:3, which were descended from Dedan the grandson of Keturah, are omitted.
Commenting on 1 Chronicles 1:29-33