Jerome
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.
Here is a latent allusion to the form of salutation in Hebrew and Syriac; they say Salemalach or Salamalach, for the Greek χαῖρε, or Latin Ave; that is, ‘Peace be with you.’ The command then is, that on entering any house they should pray for peace for their host; and, as far as they may be able, to still all discords, so that if any quarrel should arise, they, who had prayed for peace should have it—others should have the discord; as it follows, And if that house be worthy, your peace shall rest upon it; but if it be not worthy, your peace shall return to you again.