“Now the tax collectors and sinners were all drawing near to hear him. And the Pharisees and the scribes grumbled, saying, “This man receives sinners and eats with them.” So he told them this parable: “What man of you, having a hundred sheep, if he has lost one of them, does not leave the ninety-nine in the open country, and go after the one that is lost, until he finds it? And when he has found it, he lays it on his shoulders, rejoicing. And when he comes home, he calls together his friends and his neighbors, saying to them, ‘Rejoice with me, for I have found my sheep that was lost.’ Just so, I tell you, there will be more joy in heaven over one sinner who repents than over ninety-nine righteous persons who need no repentance. “Or what woman, having ten silver coins, if she loses one coin, does not light a lamp and sweep the house and seek diligently until she finds it? And when she has found it, she calls together her friends and neighbors, saying, ‘Rejoice with me, for I have found the coin that I had lost.’ Just so, I tell you, there is joy before the angels of God over one sinner who repents.” (Luke 15:1-10)

You have often heard that it is our duty, for love’s sake, to serve our neighbor in all things. If he is poor, we are to serve him with our goods; if he is in disgrace, we are to cover him with the mantle of our honor; if he is a sinner, we are to adorn him with our righteousness. That is what Christ did for us. He who was so exceedingly rich did, for our sake, empty himself and become poor. He served us with his goods, that we in our poverty might become rich. He was made to be sin on our behalf, that we might become the righteousness of God in him.

Now, the outward works of love are very great, as when we place our goods in the service of another. But the greatest is this, that I surrender my own righteousness and make it serve for the sins of my neighbor. For, outwardly to render service and help by means of one’s goods is love only in its outward aspect; but to render help and service through one’s righteousness, that is something great and pertains to the inward man. This means that I must love the sinner and be his friend, must be opposed to his sins and earnestly rebuke them, yet I must love him with all my heart as to cover his sins with my righteousness.

In short, such a friend of my neighbor am I to be that I cannot let him suffer. So dearly must I love him that I shall even run after him, and shall become like the shepherd that seeks the lost sheep, like the woman that seeks the lost piece of silver. On this occasion, therefore, we shall speak concerning such great work of love as is shown when a pious man invests the sinner with his own righteousness, when a pious woman invests the most wanton harlot with her own honor.

This is something that neither the world nor reason will do. A work like this cannot be done by honorable and pious men who are actuated only by reason, by men who would prove their piety by turning up their nose at those who are sinners, as here the Pharisees do who murmur and grumble at public sinners.

This is what our monks do. They have gone about making faces at all who lie in their sins, and have thought: “Oh, but this is a worldly fellow! He does not concern us. If, now, he really would be pious, let him put on the monk’s cowl.” Hence it is that reason and such hypocrites cannot refrain from despising those who are not like them. They are puffed up over their own life and conduct, and cannot advance far enough to be merciful to sinners. This much they do not know, that they are to be servants, and that their piety is to be of service to others. Moreover, they become so proud and harsh that they are unable to manifest any love. But at this point God intervenes, permitting the proud one to receive a severe fall and shock that he often becomes guilty of such sins as adultery, and at times does things even worse, and must afterwards say: “Keep still, brother, and restrain yourself, you are made of precisely the same stuff as yonder peasant.” He thereby acknowledges that we are all chips of the same block. No ass need deride another as a beast of burden; for we are all of one flesh.

This we clearly see in the two sorts of people here presented to us as examples. In the first place, we have the Pharisees and hypocrites who are exceedingly pious people, and were overhead and ears in holiness. In the second place, we have the open sinners and publicans, who were overhead and ears in sins. These, therefore, were despised by those shining saints, and were not considered worthy of their society. Here, however, Christ intervenes with his judgment and says that those saints are to stoop down and take the sinners upon their shoulders, and are to bear in mind that, with their righteousness and piety, they are a help to others out of their sins. But, no’ That they will not do. And this is indeed the way it goes.

A truly Christian work is it that we descend and get mixed up in the mire of the sinner as deeply as he sticks there himself, taking his sin upon ourselves and floundering out of it with him, not acting otherwise than as if his sin were our own. These, then, are great and good works in which we should exercise ourselves. But no man pays attention to them. Such works have entirely faded away and become extinct. In the meantime, one does this, the other does that, and no one thinks of praying for the sinner. It is therefore to be feared that the holiest are in the deepest hell, and that the sinners are mostly in heaven.