His concubine, whose name was Reumah, also bore Tebah and Gaham and Tahash and Maacah.

but to the sons of his concubines, Abraham gave gifts while he was still living, and sent them away from his son Isaac eastward, to the land of the east.

It came about while Israel was dwelling in that land, that Reuben went and lay with Bilhah his father’s concubine, and Israel heard of it.Now there were twelve sons of Jacob—

Timna was a concubine of Esau’s son Eliphaz and she bore Amalek to Eliphaz. These are the sons of Esau’s wife Adah.