Those who want to be pious, who fear God, and who think about how to live and behave, must know that they simply have no right to do business with their property and manage it as they please, as though they themselves were the lords of all. They have the obligation to carry on their business in a proper and orderly way; this is why there is territorial and civil law. That is how everyone would want his neighbor to treat him; therefore he should also treat his neighbor that way, taking and offering only good merchandise. Christ means this commandment seriously, and He will not let it be made free or optional, as though one could obey it or disobey it with impunity. He will enforce it, too, however much the world may take it as an insult and despise it. If you do not obey it, He will deal with you according to your own standard and judgment, and it will strike you in your house and home. You will have no blessing from what you have acquired in disobedience to this teaching, but you and your children will have only trouble and sorrow. He wants His commandment to be kept; otherwise you will have neither property nor good fortune.

In the second place, Christ not only makes this so intimate, as we have said, that we have to see it in everything we look at, He also portrays it in such a way that everyone has to blush in shame over himself. There is no one who enjoys doing something wrong when other people can see it. No one dares to sin publicly, in the presence of people, with the same freedom as he does privately, where no one can see him. So Christ intends here to appoint us as our own witnesses and to make us afraid of ourselves. Then if we do something wrong, our conscience will stand up against us with this commandment, as an eternal witness, and say: “Look here, what are you doing? According to the usual fair-business practice, you ought to put such and such a price on this. But you are putting on a much higher price. Or the way you are debasing and misrepresenting this merchandise, you would not want to have someone else sell you something like that.” How it would annoy you if someone charged you a gulden for something barely worth ten groschen! If you had one drop of honest blood in your body, you would have to be ashamed of yourself. If someone else acted this way, you would call him a thief and a villain. Then why are you not ashamed of yourself, since it is not someone else but yourself who has to make this accusation, and you are condemned by your own conscience? This may be all right for a brazen hardhead, who has no sense of shame before the people or before himself, much less before God. But when someone else treats you that way you can quickly exclaim: “Is it not a sin and a shame and a clever¹⁸ way of robbing my wallet?” You can quickly recognize a thief and a villain in someone else; but you refuse to see the one working in your own breast, whom you can easily catch and feel. (Luther’s Works, v. 21, pages 237-239).

To take a crude example again: If you are a manual laborer, you find that the Bible has been put into your workshop, into your hand, into your heart. It teaches and preaches how you should treat your neighbor. Just look at your tools—at your needle or thimble, your beer barrel, your goods, your scales or yardstick or measure—and you will read this statement inscribed on them. Everywhere you look, it stares at you. Nothing that you handle every day is so tiny that it does not continually tell you this, if you will only listen. Indeed, there is no shortage of preaching. You have as many preachers as you have transactions, goods, tools, and other equipment in your house and home. All this is eontinually crying out to you: “Friend, use me in your relations with your neighbor just as you would want your neighbor to use his property in his relations with you.” In this way, you see, this teaching would be inscribed everywhere we look, and engraved upon our entire life, if we only had ears willing to hear it and eyes willing to see it. It is being presented to us in such abundance that no one can give the excuse that he did not know it or that it was not announced and preached to him often enough. But we are like the vipers, which stop up their ears and become deaf when someone tries to trap them. We refuse to see or hear what is inscribed on our own heart and thoughts, and we plunge in recklessly: “Ha! What do I care about somebody else? I may do business with my own possessions as I please, and sell them for as much as I can get for them. Who is going to stop me?” That is what Squire Skinflint and Squire Squeeze do at the market. If someone rebukes and threatens them from the Word of God, they simply laugh and mock and become firmer in their wickedness. But we are not preaching to such people, and neither is Christ. He wants to have nothing to do with them and despises them as much as they do Him. He will let them go to the devil, so that He and they will have nothing further to do with each other. (Luther’s Works, v. 21, pages 237).

It is the same with the other Commandments. If you have a wife, a daughter, or a maid, you would not want her to be corrupted or to acquire a bad reputation. You want everyone to respect her, to treat her well, and to speak the best about her. Then why are you so perverse that you yearn for someone else’s wife and want to corrupt her yourself? Why do you not help to improve her reputation, instead of finding pleasure in talking behind her back and slandering her? Similarly, you would not want anyone to do you injury or harm, to malign you, or to do anything like that. Then why do you yourself violate the rule and standard that you demand of others and want them to keep? How can you judge, criticize, and condemn someone else if he does not treat you that way? Why do you refuse to obey your own rule? Go through all the commandments of the Second Table this way, and you will find that this is really the summary of all possible sermons, as He Himself says here. Thus this is properly termed a short sermon. But on the other hand, if it were expanded through all the details it implies, it is such a long sermon that it would be endless, since the things that will be done on earth until the Last Day are innumerable. It takes a good teacher to condense and summarize such a long-drawn-out sermon in such a way that everyone can carry it home with him, be reminded of it daily, and see what is missing in his whole life; for he has it written in his own heart, in fact, in his whole life and activity, as we shall hear in more detail.

I am convinced, moreover, that it would be influential and productive of fruit if we only got into the habit of remembering it and were not so lazy and inattentive. I do not regard anyone as so coarse or so evil that he would shirk this or be offended at it if he really kept it in mind. It was certainly clever of Christ to state it this way. The only example He sets up is ourselves, and He makes this as intimate as possible by applying it to our heart, our body and life, and all our members. No one has to travel far to get it, or devote much trouble or expense to it. The book is laid into your own bosom, and it is so clear that you do not need glasses to understand Moses and the Law. Thus you are your own Bible, your own teacher, your own theologian, and your own preacher. The way He directs you, you only need one look at them to find out how the book pervades all your works and words and thoughts, your heart and body and soul. Just guide yourself by this, and you will be more wise and learned than all the skill and all the books of the lawyers. (Luther’s Works, v. 21, pages 236-237).

Matthew 7:12. So whatever you wish that men would do to you, do so to them; for this is the Law and the Prophets.

With these words He concludes the teaching He has been giving in these three chapters, and wraps it all up in a little package where it can all be found. Thus everyone can put it in his bosom and keep it; it is as if He were saying: “Would you like to know what I have been preaching, and what Moses and all the Prophets teach you? I shall tell it to you so briefly and put it in such a way that you dare not complain about its being too long or too hard to remember.” This is the kind of sermon that can be expanded or contracted; from it all teaching and preaching go forth and are broadcast, and here they come back together. How could it be put more succinctly and clearly than in these words? The trouble is that the world and our old Adam refuse to let us ponder what He says and measure our lives against the standard of this teaching. We let it go in one ear and out the other. If we always measured our lives and actions against this standard, we would not be so coarse and heedless in what we do, but we would always have enough to do. We could become our own teachers, teaching ourselves what we ought to do; and we would not have to chase after holy lives and holy works, nor would we need many lawyers and law books. This is stated briefly and learned easily, if we only were diligent and serious in acting and living according to it.

Let me illustrate it with a somewhat crude example. Surely there is no one who would enjoy being robbed; if he asks his own heart about this, he has to say that he really would not enjoy it at all. Now, why does he fail to draw the conclusion that he should treat others the way he wants to be treated? At a market, you see everyone marking up his prices as high as he pleases, asking 30 pfennigs for something that is not worth  If you ask him, “Friend, would you want to be treated that way?” he must be honest and reasonable enough to say: “I would be willing to pay for it what its market value is and what would be reasonable and proper, so that I am not overcharged.” There, you see, your heart is telling you honestly how you would like to be treated. And your conscience is arguing that you should treat others the same way; it can teach you well about your relations with your neighbor in buying and selling and all kinds of business, all things belonging to the Seventh Commandment (Ex. 20:15): “You shall not steal.” (Luther’s Works, v. 21, pages 235-236).

It would be possible to interpret the three statements (“Ask, and it will be given you; seek, and you will find; knock, and it will be opened to you.”) to mean that He is repeating the same thing in different words to point to that constancy in prayer about which St. Paul admonishes in Romans 12:12: “Constant in prayer.” Then it would be equivalent to His saying: “It is not enough just to begin and to sigh once, to recite a prayer and then to go away. As your need is, so should your prayer be. Your need does not attack you once and then let you go. It hangs on, it falls around your neck again, and it refuses to let go. You act the same way! Pray continually, and seek and knock, too, and do not let go.” This is the lesson of the parable in Luke 18:1–8 about the widow. She was so persistent and importunate in her refusal to let go of the judge that he was overpowered and had to help her in spite of himself. How much more, Christ argues there (Luke 18:7), will God give us if He sees that we do not stop praying but go right on knocking so that He has to hear it? This is all the more so because He has promised to do so and shows that such persistence is pleasing to Him. Since your need goes right on knocking, therefore, you go right on knocking, too, and do not relent. For you have His Word, and He will have to say: “All right, then, you may have what you want.” St. James speaks of this in his Epistle when he says (James 5:16): “The prayer of a righteous man has great power in its effects” if it is serious and persistent; and in support of this he cites the example from the Scriptures of the prophet Elijah (James 5:16, 17). By urging you not only to ask but also to knock, God intends to test you to see whether you can hold on tight, and to teach you that your prayer is not displeasing to Him or unheard, simply because His answer is delayed and you are permitted to go on seeking and knocking. (Luther’s Works, v. 21, pages 234-235).

Why does Christ use so many words? He lists three items: “Ask, and it will be given you; seek, and you will find; knock, and it will be opened to you.” One would have been enough. It is evident, as has been said, that by this He intends to admonish us even more strongly to pray. He knows that we are timid and shy, that we feel unworthy and unfit to present our needs to God. We feel the needs, but we cannot express them. We think that God is so great and we are so tiny that we do not dare to pray. This, too, is a great hindrance from the devil, and it does great damage to prayer. That is why Christ wants to lure us away from such timid thoughts, to remove our doubts, and to have us go ahead confidently and boldly. Though I am unworthy, I am still His creature; and since He has made me worthy of being His creature, I am also worthy of receiving what He has promised and so generously offered to me. In other words, if I am unworthy, He and His promise are not unworthy. You can venture on this vigorously and trustfully, you can put it in His lap joyfully and confidently. But above all, be sure that you really believe in Christ and that you have a proper occupation, one that pleases God, so that you are not like the world, which does not care about its occupation but only about the vices and the villainy that it goes right on planning day and night. (Luther’s Works, v. 21, pages 233-234).

I could prove this easily from my own example and from that of other pious people. I have tried it, and so have many people with me. Thus at the Diet of Augsburg the devil was trying to devour us. The situation was so desperate and intense that the whole world expected violence to break out, as some spiteful people had been threatening. The swords were already drawn, and the guns loaded. But through our prayers God came to our aid and made it possible for those screamers, with their scratching and threatening, to get what was coming to them. He gave us a good peace and a year of grace, the likes of which there have not been for a long time, better than we could have hoped for. Now if danger and distress arise again, we will ask Him again, and He will help and deliver us again. Of course, He may let us suffer oppression for a little while in order to strengthen us and to drive us to pray that much harder. What sort of prayer would there be if there were no distress oppressing us until we felt it? Feeling your distress helps to make your prayer stronger. Let everyone, therefore, learn not to despise his prayer, nor to doubt that it will surely be heard and that in God’s good time he will receive what he wants. (Luther’s Works, v. 21, pages 233).

The right way of praying has been adequately discussed above, and also elsewhere. Here we are discussing only the power of prayer and the motivation for it. The principal thing to do is, first of all, to look at the Word of God. It will teach you what you should believe from your heart, to make you certain that your faith, Gospel, and Christ are correct and that your station in life is pleasing to God. Soon you will see the devil opposing you, and you will sense all sorts of inadequacies, inwardly in your faith and outwardly in your station. The whole world will seem to be turning topsy-turvy and swarming with temptations. When you feel this way, be wise enough to force your heart to start praying immediately and to say: “Dear Lord, I have Thy Word, and I am in the station that pleases Thee. This much I know. Thou seest all my inadequacies, and I know no help except in Thee. Help Thou, therefore, because Thou hast commanded that we should ask, seek, and knock, and hast said that then we shall surely receive, find, and have what we want.” If you form this resolution and habit of confident prayer and you do not receive, come around and accuse me of lying to you. Though He may not give it to you that very instant, still He will give you enough so that your heart will receive comfort and strength until the time when He gives more abundantly (Eph. 3:20) than you could have hoped. This is another good thing about prayer. If you use it and practice it and thus ponder the Word of His promise, your heart keeps getting stronger and firmer in its confidence, and finally gets much more than it would have otherwise. (Luther’s Works, v. 21, pages 232-233).

But getting ourselves to the point of praying causes us distress and anguish, and this requires the greatest skill. With our own concerns and thoughts we torture ourselves and stew over trying to pull this off our neck and to get rid of it. There is an evil and clever devil riding me and other people and frequently playing these tricks on me in my temptation or anxiety, whether it has to do with spiritual or with secular affairs. He immediately butts in and makes you start stewing over it. In this way he snatches us from our prayer and makes us so dizzy that we do not even think of praying. By the time you begin praying you have already tortured yourself half to death. He is well aware of what prayer achieves and can do. That is why he creates so many obstacles and disturbances, to keep you from getting around to it at all. Hence we ought to learn to take these words to heart. We should develop the habit, whenever we see anguish or need, to fall on our knees immediately and to spread the need before God, on the basis of this admonition and promise. Then we would find help and would not have to torture ourselves with our own ideas about looking for help. This is a very precious medicine, one that certainly helps and never fails, if you will only use it. (Luther’s Works, v. 21, pages 232).

What shall we do? We face so many great needs and obstacles that we could not escape them even by slamming the door in their face. I am so lazy and lax in my attention to the Word of God and to everything good. How can I prevent my own death, or the riots and rumpus that the world causes, or the raging of the devil, or the trouble and misfortune everywhere? Now, because Christ, our Lord, knows this well, He wants to be a good and faithful physician and to show us a precious and powerful medicine. He wants to teach us what to do, as though He were saying: “The world is insane. It tries to get rid of its insanity by the use of wisdom and reason; and it looks for many ways and means, for all sorts of help and advice on how to escape this distress. But the shortest and surest way is to go into a little room (Matt. 6:6) or a corner and there to open up your heart and to pour it out before God, filled with complaints and sighs, but also with confidence and trust that as your faithful heavenly Father He wants to give you His help and advice in this distress.”

In Isaiah 37 we read the story of King Hezekiah. The enemy was besieging the city with a great army and was so oppressing him and overwhelming him that, by human standards, the situation was utterly hopeless. Then the enemy ridiculed him mercilessly and made fun of his misfortune by writing him a letter full of blasphemy. The pious king might well have despaired; but all he did was to go up into the temple, spread the letter before God on the altar, and fall down and pray from his heart. Soon he was heard and helped. (Luther’s Works, v. 21, pages 231-232).