Matthew 5:40

Beyond the tolerance of physical injury, the Lord wants us also to have contempt for things of this world and to be so far removed from every lawsuit or contest of judgment. If by chance a slanderer or tempter comes forward to initiate a lawsuit …

"And if any man will sue thee at the law, and take away thy coat, let him have thy cloak also." For not in the matter of blows only, but of our goods also, He would have such forbearance exhibited. Wherefore He again employs the same strong figure. That is, as in the other case He commands to overcome in suffering, so here again, by allowing ourselves to be deprived of more than the wrong doer expected. However, He did not put it so merely, but with something to enhance it: not saying, "give thy cloak to him that asketh," but "to him that would sue thee at the law," that is, "if he drag thee into court, and give thee trouble." And just as, after He had bidden not to call another fool, nor to be angry without cause, He went on and required more, in that He commanded to offer the right cheek also; even so here, having said, "Agree with thine adversary," He again amplifies the precept. For now He orders us not only to give what the other would have, but even to show forth a greater liberality. "What then!" one may say, "am I to go about naked?" We should not be naked, if we obeyed these sayings with exactness; rather more abundantly than any should we be clothed. For first, no one would attack men of this disposition; and next, if there chanced to be any one so savage and ungentle, as to proceed even so far, yet many more would be found to clothe him, who acted with such self-denial, not with garments only, but even with their own flesh, if it were possible. Further: even though one were of necessity to go about naked on account of this sort of self-denial, neither so were it any disgrace. Since Adam too was "naked" in paradise, "and was not ashamed;" and Isaiah was "naked, and barefoot," and more glorious than all the Jews; and Joseph also, when he stripped himself, did then more than ever shine forth. […]

For it were an unworthy thing that a believer should stand in his cause before an unbelieving judge. Or if one who is a believer, though (as he must be) a worldly man, though he should have reverenced you for the worthiness of the faith, sues you because the cause is a necessary one, you will lose the worthiness of Christ for the business of the world. Further, every lawsuit irritates the heart and excites bad thoughts; for when you see dishonesty or bribery employed against you, you hasten to support your own cause by like means, though originally you might have intended nothing of the sort.

Hence also what follows, "And if any man will sue thee at the law, and take away thy coat, let him have thy cloak also," is rightly understood as a precept having reference to the preparation of heart, not to a vain show of outward deed. But what is said with respect to the coat and cloak is to be carried out not merely in such things, but in the case of everything which on any ground of right we speak of as being ours for time. For if this command is given with respect to what is necessary, how much more does it become us to contemn what is superfluous! But still, those things which I have called ours are to be included in that category under which the Lord Himself gives the precept, when He says, "If any man will sue thee at the law, and take away thy coat." Let all these things therefore be understood for which we may be sued at the law, so that the right to them may pass from us to him who sues, or for whom he sues; such, for instance, as clothing, a house, an estate, a beast of burden, and in general all kinds of property. But whether it is to be understood of slaves also is a great question. For a Christian ought not to possess a slave in the same way as a horse or money: although it may happen that a horse is valued at a greater price than a slave, and some article of gold or silver at much more. But with respect to that slave, if he is being educated and ruled by time as his master, in a way more upright, and more honourable, and more conducing to the fear of God, than can be done by him who desires to take him away, I do not know whether any one would dare to say that he ought to be despised like a garment. For a man ought to love a fellow-man as himself, inasmuch as he is commanded by the Lord of all (as is shown by what follows) even to love his enemies. It is carefully to be observed that every tunic is a garment, but that every garment is not a tunic. […]

The other kind of injuries are those in which full restitution can be made, of which there are two kinds; one relates to money, the other to work; of the first of these it is He speaks when He continues, Whoso will sue thee for thy coat, let him have thy cloak likewise. As by the cheek are denoted such injuries of the wicked as admit of no restitution but revenge, so by this similitude of the garments is denoted such injury as admits restitution. And this, as the former, is rightly taken of preparation of the heart, not of the show of the outward action. And what is commanded respecting our garments, is to be observed in all things that by any right we call our own in worldly property. For if the command be expressed in these necessary articles of life, how much more does it hold in the case of superfluities and luxuries? And when He says, He who will sue thee, He clearly intends to include every thing for which it is possible that we should be sued. It may be made a question whether it is to be understood of slaves, for a Christian ought not to possess his slave on the same footing as his horse; though it might be that the horse was worth the more money. And if your slave have a milder master in you than he would have in him who seeks to take him from you, I do not know that he ought to be given up as lightly as your coat. The Lord here forbids his disciples to have lawsuits with others for worldly property. Yet as the Apostle allows such kind of causes to be decided between brethren, and before arbiters who are brethren, but utterly disallows them without the Church, it is manifest what is conceded to infirmity as pardonable.