1 Chronicles 1:32–33 (ESV)

32 The sons of Keturah, Abraham’s concubine: she bore Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. The sons of Jokshan: Sheba and Dedan.

The author now deals with the descendants of Abraham by Keturah, his concubine, a term loosely used for “wife” (Genesis 25:1). The sons of Keturah are appropriately named (Keturah means “frankincense”). They came from an area east and southeast of Israel that was known for making frankincense. They too were desert dwellers, as the names Midian and Sheba suggest (Genesis 37:28, Genesis 37:36; Exodus 2:15–16; Isaiah 60:6; Jeremiah 6:20 Ezekiel 27:22).