Numbers 16:1
Now Korah son of Izhar, the son of Kohath, the son of Levi, and Dathan and Abiram, the sons of Eliab, and On son of Peleth, who were Reubenites, took men
Jude 1:11
Woe to them! For they have traveled down Cain's path, and because of greed have abandoned themselves to Balaam's error; hence, they will certainly perish in Korah's rebellion.
Exodus 6:21
The sons of Izhar were Korah, Nepheg, and Zikri.
Exodus 6:18
The sons of Kohath were Amram, Izhar, Hebron, and Uzziel. (The length of Kohath's life was 133 years.)
Numbers 27:3
"Our father died in the wilderness, although he was not part of the company of those that gathered themselves together against the Lord in the company of Korah; but he died for his own sin, and he had no sons.
Genesis 49:3-4
Reuben, you are my firstborn, my might and the beginning of my strength, outstanding in dignity, outstanding in power.
Numbers 26:9-10
Eliab's descendants were Nemuel, Dathan, and Abiram. It was Dathan and Abiram who as leaders of the community rebelled against Moses and Aaron with the followers of Korah when they rebelled against the Lord.
Deuteronomy 11:6
or what he did to Dathan and Abiram, sons of Eliab the Reubenite, when the earth opened its mouth in the middle of the Israelite camp and swallowed them, their families, their tents, and all the property they brought with them.
1 Chronicles 5:1-2
The sons of Reuben, Israel's firstborn -- (Now he was the firstborn, but when he defiled his father's bed, his rights as firstborn were given to the sons of Joseph, Israel's son. So Reuben is not listed as firstborn in the genealogical records.