Numbers 2:10
"On the south side shall be the standard of the camp of Reuben according to their divisions. The prince of the children of Reuben shall be Elizur the son of Shedeur.
Numbers 1:5
These are the names of the men who shall stand with you: Of Reuben: Elizur the son of Shedeur.
Genesis 49:3-4
"Reuben, you are my firstborn, my might, and the beginning of my strength; excelling in dignity, and excelling in power.
Numbers 7:30
On the fourth day Elizur the son of Shedeur, prince of the children of Reuben
Numbers 7:35
and for the sacrifice of peace offerings, two head of cattle, five rams, five male goats, and five male lambs a year old. This was the offering of Elizur the son of Shedeur.
Numbers 10:18
The standard of the camp of Reuben went forward according to their armies. Elizur the son of Shedeur was over his army.
1 Chronicles 5:1
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; and the genealogy is not to be reckoned after the birthright.