Ambrose of Milan

Nor does everyone undertake this business matter, but only the sons of Jacob and only those sons of more mature age. Thus ten sons go, whereas the youngest son does not go. The father did not send him; else "infirmity may befall him." Benjamin, the youngest, was still subject to infirmity. Granted, [in] the name Benjamin the patriarch is read, but Paul, who was of the tribe of Benjamin, was being prefigured. Jacob was right to hesitate over his infirmity. Indeed, he was made infirm so that he could be healed. …

On Joseph the Patriarch ↗