1 Chronicles 5:6 (KJV)

Now the sons of Reuben the firstborn of Israel, (for he was the firstborn; but forasmuch as he defiled his father's bed, his birthright was given unto the sons of Joseph the son of Israel: and the genealogy is not to be reckoned after the birthright.

For Judah prevailed above his brethren, and of him came the chief ruler; but the birthright was Joseph's:)

The sons, I say, of Reuben the firstborn of Israel were, Hanoch, and Pallu, Hezron, and Carmi.

The sons of Joel; Shemaiah his son, Gog his son, Shimei his son,

Micah his son, Reaia his son, Baal his son,

And his brethren by their families, when the genealogy of their generations was reckoned, were the chief, Jeiel, and Zechariah,

And Bela the son of Azaz, the son of Shema, the son of Joel, who dwelt in Aroer, even unto Nebo and Baalmeon:

And eastward he inhabited unto the entering in of the wilderness from the river Euphrates: because their cattle were multiplied in the land of Gilead.

And in the days of Saul they made war with the Hagarites, who fell by their hand: and they dwelt in their tents throughout all the east land of Gilead.

And the children of Gad dwelt over against them, in the land of Bashan unto Salcah: