Introduction
Keturah is a wife Abraham took after Sarah's death, described in Genesis 25 as bearing him six sons, whose descendants Genesis associates with various peoples of the Arabian and trans-Jordanian regions.
Family
Marriage and sons
Genesis 25:1-2 records that Abraham took Keturah as a wife (some Jewish tradition and the parallel account in 1 Chronicles refer to her as a concubine rather than a full wife, a distinction the Genesis text itself does not make explicit) and that she bore him six sons: Zimran, Jokshan, Medan, Midian, Ishbak and Shuah.
Provision and departure
Genesis 25:6 records that Abraham gave gifts to the sons of his concubines (understood to include Keturah's sons, and possibly Hagar) and sent them eastward, away from Isaac, "while he was still living", in order to secure Isaac's position as the primary heir of the covenant promise.
Descendants
Keturah's sons became, in the text's own terms, ancestral figures of several peoples: most notably Midian, whose descendants, the Midianites, appear repeatedly in later biblical narrative, including in the stories of Moses and Gideon.