Reference: Tribes of Israel
Hastings
The number of the tribes of Israel varied at different periods. The number 12 is an artificial one, as is seen from its application to the descendants of Ishmael (Ge 17:20; 25:13-15), of Nahor (Ge 22:20-24), and of Esau (Ge 36:15-19,40-43). Simeon and Levi were 'divided in Jacob and scattered in Israel' (Ge 49:7) when the tribe of Benjamin arose, so that at that time there would be not 12 but only 11 tribes. Reuben, likewise, in the period of the kings, was an insignificant remnant, and, though mentioned in 1Ch 5:26 as still existing in 734, had apparently become disintegrated long before. As Stade (VI Geschichte des Volkes Israel i. 146) correctly remarks, several of the largest tribes
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As for Ishmael, I have heard you; behold, I have blessed him and will make him fruitful and multiply him greatly. He shall father twelve princes, and I will make him into a great nation.
Now after these things it was told to Abraham, "Behold, Milcah also has borne children to your brother Nahor: Uz his firstborn, Buz his brother, Kemuel the father of Aram, read more. Chesed, Hazo, Pildash, Jidlaph, and Bethuel." (Bethuel fathered Rebekah.) These eight Milcah bore to Nahor, Abraham's brother. Moreover, his concubine, whose name was Reumah, bore Tebah, Gaham, Tahash, and Maacah.
These are the names of the sons of Ishmael, named in the order of their birth: Nebaioth, the firstborn of Ishmael; and Kedar, Adbeel, Mibsam, Mishma, Dumah, Massa, read more. Hadad, Tema, Jetur, Naphish, and Kedemah.
Then they journeyed from Bethel. When they were still some distance from Ephrath, Rachel went into labor, and she had hard labor. And when her labor was at its hardest, the midwife said to her, "Do not fear, for you have another son." read more. And as her soul was departing (for she was dying), she called his name Ben-oni;but his father called him Benjamin. So Rachel died, and she was buried on the way to Ephrath (that is, Bethlehem), and Jacob set up a pillar over her tomb. It is the pillar of Rachel's tomb, which is there to this day.
These are the chiefs of the sons of Esau. The sons of Eliphaz the firstborn of Esau: the chiefs Teman, Omar, Zepho, Kenaz, Korah, Gatam, and Amalek; these are the chiefs of Eliphaz in the land of Edom; these are the sons of Adah. read more. These are the sons of Reuel, Esau's son: the chiefs Nahath, Zerah, Shammah, and Mizzah; these are the chiefs of Reuel in the land of Edom; these are the sons of Basemath, Esau's wife. These are the sons of Oholibamah, Esau's wife: the chiefs Jeush, Jalam, and Korah; these are the chiefs born of Oholibamah the daughter of Anah, Esau's wife. These are the sons of Esau (that is, Edom), and these are their chiefs.
These are the names of the chiefs of Esau, according to their clans and their dwelling places, by their names: the chiefs Timna, Alvah, Jetheth, Oholibamah, Elah, Pinon, read more. Kenaz, Teman, Mibzar, Magdiel, and Iram; these are the chiefs of Edom (that is, Esau, the father of Edom), according to their dwelling places in the land of their possession.
Cursed be their anger, for it is fierce, and their wrath, for it is cruel! I will divide them in Jacob and scatter them in Israel.
After the death of Joshua, the people of Israel inquired of the LORD, "Who shall go up first for us against the Canaanites, to fight against them?"
The house of Joseph also went up against Bethel, and the LORD was with them.
Solomon had twelve officers over all Israel, who provided food for the king and his household. Each man had to make provision for one month in the year.
The sons of Reuben the firstborn of Israel (for he was the firstborn, but because he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel, so that he could not be enrolled as the oldest son; though Judah became strong among his brothers and a chief came from him, yet the birthright belonged to Joseph),
So the God of Israel stirred up the spirit of Pul king of Assyria, the spirit of Tiglath-pileser king of Assyria, and he took them into exile, namely, the Reubenites, the Gadites, and the half-tribe of Manasseh, and brought them to Halah, Habor, Hara, and the river Gozan, to this day.