For the peace which is offered by the mouth of the preacher shall either rest on the house, if there be any one in it predestined to life, who follows the heavenly word which he hears; or if no one be willing indeed to hear, the preacher himself shall not be without fruit, for the peace returns to him, while the Lord gives him the recompense of reward for the labour of his work. But if our peace is received, it is meet that we should obtain earthly supplies from those to whom we offer the rewards of a heavenly country. Hence it follows: And in the same house remain, eating and drinking such things as they give. Mark, that He who forbade them to carry purse and scrip, allows them to be an expense to others, and to receive sustenance from preaching.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Hom. 17. in Ev.