Read Genesis 43:9 Using Other Translations
I will be surety for him; of my hand shalt thou require him: if I bring him not unto thee, and set him before thee, then let me bear the blame for ever:
I will be a pledge of his safety. From my hand you shall require him. If I do not bring him back to you and set him before you, then let me bear the blame forever.
I personally guarantee his safety. You may hold me responsible if I don’t bring him back to you. Then let me bear the blame forever.