Charles Ellicott Commentary Genesis 25:2

"And she bare him Zimran, and Jokshan, and Medan, and Midian, and Ishbak, and Shuah." — Genesis 25:2 (ASV)

Zimran. — The home of Keturah’s descendants is placed by Josephus and Jerome in Arabia-Felix; but the supposed traces of their names are untrustworthy.

Midian is the one son of Keturah who had a great future before him, for his descendants became famous traders (Genesis 37:28). As they are called Me· danites there in the Hebrew, in Genesis 37:36, it is probable that Medan and Midian coalesced into one tribe.

Jethro, the father-in-law of Moses, belonged to them (Exodus 2:15–16). Enriched by commerce, they became so powerful as to be dangerous neighbors to the Israelites (Judges 6:7, Judges 6:8).

Shuah. — From him perhaps descended Bildad the Shuhite, Job’s friend (Job 2:11). The name in the Hebrew is different from that also rendered “Shuah” in Genesis 38:2.