Numbers 2:10
"On the south side shall be the standard of the camp of Reuben by their companies, the chief of the people of Reuben being Elizur the son of Shedeur,
Numbers 1:5
And these are the names of the men who shall assist you. From Reuben, Elizur the son of Shedeur;
Genesis 49:3-4
"Reuben, you are my firstborn, my might, and the firstfruits of my strength, preeminent in dignity and preeminent in power.
Numbers 7:30
On the fourth day Elizur the son of Shedeur, the chief of the people of Reuben:
Numbers 7:35
and for the sacrifice of peace offerings, two oxen, 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
And the standard of the camp of Reuben set out by their companies, and over their company was Elizur the son of Shedeur.
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, so that he could not be enrolled as the oldest son;