'Son's' in the Bible

Then he said, “Serve me, and let me eat some of my son’s game so that I can bless you.” Jacob brought it to him, and he ate; he brought him wine, and he drank.

He had also made some delicious food and brought it to his father. Then he said to his father, “Let my father get up and eat some of his son’s game, so that you may bless me.”

Reuben went out during the wheat harvest and found some mandrakes in the field. When he brought them to his mother Leah, Rachel asked, “Please give me some of your son’s mandrakes.”

But Leah replied to her, “Isn’t it enough that you have taken my husband? Now you also want to take my son’s mandrakes?”“Well,” Rachel said, “you can sleep with him tonight in exchange for your son’s mandrakes.”

When Jacob came in from the field that evening, Leah went out to meet him and said, “You must come with me, for I have hired you with my son’s mandrakes.” So Jacob slept with her that night.

They sent the robe of many colors to their father and said, “We found this. Examine it. Is it your son’s robe or not?”

His father recognized it. “It is my son’s robe,” he said. “A vicious animal has devoured him. Joseph has been torn to pieces!”