Numbers 1:20
The roster of families and households for the descendants of Reuben, Israel's firstborn son, listed every man by name that was at least twenty years old and eligible for military duty.
Numbers 26:5-7
Reuben was Israel's firstborn. The descendants of Reuben were the family of Hanoch, the family of Pallu,
Numbers 2:10-11
On the south side the armies led by Reuben will camp under their flag. The leader for the people of Reuben is Elizur, son of Shedeur
Genesis 29:32
Leah became pregnant and gave birth to a son. She named him Reuben, because she said: Certainly, Jehovah has seen my misery. Now my husband will love me!
Genesis 46:9
The sons of Reuben were Hanoch, Pallu, Hezron, and Carmi.
Genesis 49:3-4
Reuben, you are my firstborn; you are my strength and the first child of my manhood. You are the proudest and strongest of all my sons.
1 Chronicles 5:1
The sons of Reuben the firstborn of Israel he was the firstborn, but when he defiled his father's marriage bed, his rights as firstborn were given to the sons of Joseph son of Israel; so he could not be listed in the genealogical record in accordance with his birthright,