Genesis 25:6

the concubines i.e. Hagar and Keturah; although in Genesis 16:3 Hagar is called Abraham's wife, as also is Keturah in Genesis 25:1 of this chapter.

sent them away The present passage belongs to J, a different source of tradition from chap. 21 (E). It ignores the account of the expulsion of Hagar and Ishmael related in that chapter, and of the dwelling of Ishmael in the wilderness of Paran (Genesis 21:21).

unto the east country i.e. the Syro-Arabian desert, on the east of Palestine. Genesis 29:1; Judges 6:3; Judges 6:33; Judges 7:12; Judges 8:10; Isaiah 11:14; Jeremiah 49:28; Ezekiel 25:4; Ezekiel 25:10 are passages in which "the children of the east" (b'nê ḳedem) are mentioned as the nomad occupants of this region.