Genesis 42:37-38

37Then Reuben said to his father, Jacob, ‘I will bring Benjamin back to you. If I do not, then you can kill both of my sons. Trust me to take care of him. I will bring him back.’

38But Jacob said, ‘My son will not go with you. His brother is already dead. Benjamin is the only one left. Something bad may happen to him on your journey. I am already an old man. If I lose Benjamin, I would be so sad that I would die.’