These are the names of the sons of Ishmael in the order of their birth: Nebaioth the firstborn of Ishmael, then Kedar, Adbeel, Mibsam,
Immediately after the account of Abraham's death, Moses begins the story of Isaac (Gen 25:11), and tells us where he dwelt and how remarkably God blessed him. Note, The blessing of Abraham did not die with him, but survived to all the children of the promise.
Commenting on Genesis 25:11-18
And these are the names of the sons of Ishmael,.... After mentioned: by their names, according to their generations; which were imposed upon them at their birth, and are recited according to the order in which they were born, as follows: the firstborn of Ishmael, Nebajoth: mentioned in Isa 60:7; and from whence a people of the Arabs are called Nabathaeans, and their country Nabathaea.
Nebajoth - From whom came the Nabatheans, whose capital was Petra, or, according to Strabo, Nabathea. They dwelt in Arabia Petraea, and extended themselves on the east towards Arabia Deserta. Kedar - The founder of the Cedreans, who dwelt near to the Nabatheans. The descendants of Kedar form a part of the Saracens. Adbeel, and Mibsam - Where these were situated is not known.