Matthew 10:11

Figuratively, The Lord teaches us not to enter the houses or to mix in the acquaintance of those who persecute Christ, or who are ignorant of Him; and in each town to enquire who among them is worthy, i. e. where there is a Church wherein Christ dwells; and not to pass to another, because this house is worthy, this host is our right host. But there would be many of the Jews who would be so well disposed to the Law, that though they believed in Christ because they admired His works, yet they would abide in the works of the Law; and others again who, desiring to make trial of that liberty which is in Christ, would feign themselves ready to forsake the Law for the Gospel; many also would be drawn aside into heresy by perverse understanding. And since all these would falsely maintain that with them only was Catholic verity, therefore we must with great caution seek out the house, i. e. the Church.

(in Luc. 9:5.) The Apostles are not to choose carelessly the house into which they enter, that they may have no cause for changing their lodging; the same caution is not enforced upon the entertainer, lest in choosing his guests, his hospitality should be diminished. When ye enter a house, salute it, saying, Peace be to this house.

"And into whatsoever city or town ye shall enter, inquire who in it is worthy: and there abide till ye go thence." That is, "it follows not," saith He, "from my saying, 'The workman is worthy of his meat,' that I have opened to you all men's doors: but herein also do I require you to use much circumspection. For this will profit you both in respect of your credit, and for your very maintenance. For if he is worthy, he will surely give you food; more especially when ye ask nothing beyond mere necessaries." And He not only requires them to seek out worthy persons, but also not to change house for house, whereby they would neither vex him that is receiving them, nor themselves get the character of gluttony and self-indulgence. For this He declared by saying, "There abide till ye go thence." And this one may perceive from the other evangelists also. Seest thou how He made them honorable by this also, and those that received them careful; by signifying that they rather are the gainers, both in honor, and in respect of advantage?

But mark, I pray thee, how He doth not even yet give the whole to them. For neither doth He as yet bestow upon them foreknowledge, so as to learn who is worthy, and who is not so; but He bids them inquire, and await the trial. How then did He Himself abide with a publican? Because he was become worthy by his conversion. And mark, I pray thee, how when He had stripped them of all, He gave them all, by suffering them to abide in the houses of those who became disciples, and to enter therein, having nothing. For thus both themselves were freed from anxiety, and they would convince the others, that for their salvation only are they come; first by bringing in nothing with them. then by requiring no more of them than necessaries, lastly, by not entering all their houses without distinction. Since not by the signs only did He desire them to appear illustrious, but even before the signs, by their own virtue. For nothing so much characterizes strictness of life, as to be free from superfluities, and so far as may be, from wants. This even the false apostles knew. Wherefore Paul also said, "That wherein they glory, they may be found even as we."

The Apostles, on entering a strange town, could not know of each inhabitant what sort of man he was; they were to choose their host therefore by the report of the people, and opinion of the neighbours, that the worthiness of the preacher might not be disgraced by the ill character of his entertainer. One host is chosen who does not so much confer a favour upon him who is to abide with him, as receive one. For it is said, Who in it is worthy, that he may know that he rather receives than does a favour.