Genesis 25:12-20 KJV
12 Now these are the generations of Ishmael, Abraham's son, whom Hagar the Egyptian, Sarah's handmaid, bare unto Abraham:
13 And these are the names of the sons of Ishmael, by their names, according to their generations: the firstborn of Ishmael, Nebajoth; and Kedar, and Adbeel, and Mibsam,
14 And Mishma, and Dumah, and Massa,
15 Hadar, and Tema, Jetur, Naphish, and Kedemah:
16 These are the sons of Ishmael, and these are their names, by their towns, and by their castles; twelve princes according to their nations.
17 And these are the years of the life of Ishmael, an hundred and thirty and seven years: and he gave up the ghost and died; and was gathered unto his people.
18 And they dwelt from Havilah unto Shur, that is before Egypt, as thou goest toward Assyria: and he died in the presence of all his brethren.
19 And these are the generations of Isaac, Abraham's son: Abraham begat Isaac:
20 And Isaac was forty years old when he took Rebekah to wife, the daughter of Bethuel the Syrian of Padanaram, the sister to Laban the Syrian.