Exodus 1:1-5 Holman Christian Standard Bible (HCSB)
Israel Oppressed in Egypt
1 These are the names of the sons of Israel who came to Egypt with Jacob; each came with his family:
2 Reuben, Simeon, Levi, and Judah;
Numbers 26:4-5 Holman Christian Standard Bible (HCSB)
4 “Take a census of those 20 years old or more, as the Lord had commanded Moses and the Israelites who came out of the land of Egypt.”
5 Reuben was the firstborn of Israel.