Numbers 16:1
Korah son of Izhar, Dathan and Abiram sons of Eliab, and On son of Peleth dared to challenge Moses. Korah was a descendant of Kohath and Levi. Dathan, Abiram, and On were descendants of Reuben.
Jude 1:11
Woe to them! They went in the way of Cain, and ran riotously in the error of Balaam for hire, and perished in the rebellious talk of Korah.
Exodus 6:21
The sons of Izhar: Korah and Nepheg and Zichri.
Exodus 6:18
The sons of Kohath: Amram and Izhar and Hebron and Uzziel. Kohath lived one hundred and thirty-three years.
Numbers 27:3
Our father died in the desert. He was not a part of Korah's followers who joined forces against Jehovah. He died for his own sin and left no sons.
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.
Numbers 26:9-10
and Nemuel, Dathan, and Abiram were the sons of Eliab. It was Dathan and Abiram, men chosen by the community, who defied Moses and Aaron's authority. They joined Korah's followers when they defied Jehovah's authority.
Deuteronomy 11:6
And what he did to Dathan and Abiram, the sons of Eliab, the son of Reuben, when the earth opened its mouth and swallowed them, their households, their tents, and every living thing that followed them in all Israel.
1 Chronicles 5:1-2
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,