Numbers 2:10
On the south side shall be the standard of the camp of Reuben, according to their armies; the ruler of the sons of Reuben shall be Elizur the son of Shedeur.
Numbers 1:5
And these are the names of the men that shall stand with you: of Reuben, Elizur, the son of Shedeur;
Genesis 49:3-4
Reuben, you are my first-born, my might, and the beginning of my strength, the excellency of dignity and the excellency of power.
Numbers 7:30
On the fourth day Elizur the son of Shedeur, ruler of the sons of Reuben, offered.
Numbers 7:35
and for a sacrifice of peace offerings, two oxen, five rams, five male goats, five lambs of the first year. This was the offering of Elizur the son of Shedeur.
Numbers 10:18
And the standard of the camp of Reuben pulled up according to their armies. And over his army was Elizur the son of Shedeur.
1 Chronicles 5:1
And the sons of Reuben, the first-born of Israel (for he was the first-born; but since he defiled his father's bed, his birthright was given to the sons of Joseph the son of Israel, and the genealogy is not to be counted according to the birthright;