John Chrysostom
If you receive someone as Christ, you will neither grumble nor be ashamed, but rather boast in this. If you do not receive him as Christ, then you do not receive him. "He who receives you," He says, "receives Me" (Mt 10:40). If you do not receive in this way, you have no reward. Abraham received men passing by, considering them strangers. Yet he did not entrust everything to the servants, but ordered his wife to knead the dough, though he had 318 members of his household. He wanted to receive the reward together with his wife, not only for the expense but also for the service. Thus hospitality must be shown by doing everything ourselves, so that we may be sanctified.