Genesis 35:23

35:23 The sons of Leah were Reuben, Jacob’s firstborn, as well as Simeon, Levi, Judah, Issachar, and Zebulun.

Genesis 37:29

37:29 Later Reuben returned to the cistern to find that Joseph was not in it! ¹  He tore his clothes,

Genesis 46:8

46:8 These are the names of the sons of Israel who went to Egypt – Jacob and his sons:

Reuben, the firstborn of Jacob.

Genesis 49:3

49:3 Reuben, you are my firstborn,

my might and the beginning of my strength,

outstanding in dignity, outstanding in power.

[37:29]  ¹ tn Heb “and look, Joseph was not in the cistern.” By the use of וְהִנֵּה (vÿhinneh, “and look”), the narrator invites the reader to see the situation through Reuben’s eyes.