the eldest

Genesis 29:32
And Leah conceived and gave birth to a son, and she named him Reuben, for she said, "The LORD has seen my affliction. Surely my husband will love me now."

Genesis 49:2, 3
Come together and listen, O sons of Jacob; listen to your father Israel. . . .

1 Chronicles 5:1
These were the sons of Reuben the firstborn of Israel. Though he was the firstborn, his birthright was given to the sons of Joseph son of Israel, because Reuben defiled his father's bed. So he is not reckoned according to birthright.

thy children

Genesis 46:8, 9
Now these are the names of the sons of Israel (Jacob and his descendants) who went to Egypt: Reuben, Jacob's firstborn. . . .

Exodus 6:14
These were the heads of their fathers' houses: The sons of Reuben, the firstborn of Israel, were Hanoch and Pallu, Hezron and Carmi. These were the clans of Reuben.

1 Chronicles 5:3
The sons of Reuben, the firstborn of Israel: Hanoch, Pallu, Hezron, and Carmi.