John Chrysostom
Catena Aurea · Matthäusevangelium 10
And into whatsoever city or town ye shall enter, enquire who in it is worthy; and there abide till ye go thence. And when ye come into an house, salute it. And if the house be worthy, let your peace eome upon it: but if it be not worthy, let your peace return to you. And whosoever shall not receive you, nor hear your words, when ye depart out of that house or eity, shake off the dust of your feet. Verily I say unto you, It shall be more tolerable for the land of Sodom and Gomorrha in the day of judgment, than for that city.
Also observe that He has not yet endowed them with all gifts; for He has not given them power to discern who is worthy, but bids them seek out; and not only to find out who is worthy, but also not to pass from house to house, saying, And there remain until ye depart out of that city; so they would neither make their entertainer sorrowful, nor themselves incur suspicion of lightness or gluttony.