This is the number of men twenty years old or older who were able to go to war, as their names were listed in the records of their clans and families: Tribe Number Reuben (Jacob’soldest son) 46,500
So Leah became pregnant and gave birth to a son. She named him Reuben, for she said, “The Lord has noticed my misery, and now my husband will love me.”
The oldest son of Israel was Reuben. But since he dishonored his father by sleeping with one of his father’s concubines, his birthright was given to the sons of his brother Joseph. For this reason, Reuben is not listed in the genealogical records as the firstborn son.