1 Now Korah, the son of Izhar, the son of Kohath, the son of Levi, took both Dathan and Abiram, the sons of Eliab, and On, the son of Peleth, sons of Reuben;
Numbers 16:1 Cross References - MKJV
Genesis 49:3-4
Exodus 6:18
18 And the sons of Kohath: Amram, and Izhar, and Hebron, and Uzziel. And the years of the life of Kohath were a hundred and thirty-three years.
Exodus 6:21
21 And the sons of Izhar: Korah, and Nepheg, and Zichri.
Numbers 26:9-10
9 And the sons of Eliab, Nemuel, and Dathan and Abiram. This is that Dathan and Abiram who were famous in the congregation, who fought against Moses and against Aaron in the company of Korah, when they fought against Jehovah.
10 And the earth opened its mouth and swallowed them up together with Korah, when that company died, when the fire devoured two hundred and fifty men. And they became a sign.
Numbers 27:3
3 Our father died in the wilderness, and he was not in the company of those who gathered themselves against Jehovah in the company of Korah, but died in his own sin, and had no sons.
Deuteronomy 11:6
6 and what He did to Dathan and Abiram, the sons of Eliab the son of Reuben, how the earth opened its mouth and swallowed them up, and their households, and their tents, and all the substance in their possession, in the midst of all Israel.
1 Chronicles 5:1-2
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;
2 For Judah prevailed among his brothers, and from him came the chief ruler, but the birthright was Joseph's);
Jude 1:11
11 Woe to them! For they went the way of Cain, and gave themselves up to the error of Balaam for reward, and perished in the gainsaying of Korah.