Cross reference
Genesis 44:22
22 And we said unto my lord, The lad cannot leave his father: for if he should leave his father, his father would die.
Genesis 42:38
38 And he said, My son shall not go down with you; for his brother is dead, and he only is left: if harm befall him by the way in which ye go, then will ye bring down my gray hairs with sorrow to Sheol.
Genesis 44:30
30 Now therefore when I come to thy servant my father, and the lad is not with us; seeing that his life is bound up in the lad's life;