1. Here again we have a picture and an example of the divine judgment on saints and good people. Two extraordinary persons are presented to us in this Gospel; one thoroughly good and truly pious; and one hypocritically pious. But before we take up the example and consider the terrible sentence, we must first notice that Luke here makes the impression as though righteousness came by works. For Luke is most accustomed to do this, as when we at present preach that faith alone saves, he observes that people are led to desire only to believe, and to neglect the power and fruit of faith. This John also does in his Epistle and James, where they show that faith cannot exist without works.
Thus Luke, in the beginning of his introduction, would speak as follows: I see indeed that many have preached how faith alone saves, by which they have brought the people to strive for a fictitious faith; hence I must also speak of works by which they can be assured of their faith, and prove it to the people by their acts. Consequently it sounds as though Luke everywhere taught that righteousness came by works; as you have recently heard: Forgive, and ye shall be forgiven; and, make unto yourselves friends of the mammon of unrighteousness. And here it appears as though the publican had obtained his goodness by praying and smiting his breast. So this Gospel appears as though we should become good or pious by our works.
2. Now you have heard that a man, before he can do anything good, must by all means first be good. For the truth must always stand: “A good tree cannot bring forth evil fruit;” and again, “An evil tree cannot bring forth good fruit.” Thus a man must first be good, before he can do good. So he also firmly concludes that the publican smote his breast, which proves the conclusion, that he had been good.
3. This has taken place and has been written to the end that we should open our eyes and not judge the people according to their outward appearance. To do this in this instance it is necessary to examine the hearts of both, and not judge according to mere external works. For when the heart is good, the whole man is good. For if I judged the publican according to his works, my judgment would soon be false. For nothing appears in him but sin. Again, if I judge the hypocrite or Pharisee according to his works, I will also miss the mark. For he stands at the holy place, makes the best prayer imaginable, for he praises and thanks God with grand works, he fasts, gives the tenth of all his goods, harms no one; in short, everything, both outwardly and inwardly, appears well with him.
4. As he judges, all men judge; no one can condemn such an upright and virtuous life. Who dare say that fasting is not good; or that to praise God and give everyone what we owe them is evil? When I see a priest, monk, or nun with such apparent noble conduct, I regard them as pious. Who can say otherwise? Hence if I am to judge whether this one is good and the other evil, I must be able to look into the hearts of both. But I cannot see into the heart, and must make the proper distinction from their works, as Christ says: “By their fruits ye shall know them.” Matthew 7:20.
5. He speaks of the publican as though he must have previously heard a word from God that touched his heart so that he believed it and thus became pious, as St. Paul says, Romans 10:17: “So faith cometh by hearing, and hearing by the word of Christ.” When the Word falls into the heart, then man becomes pure and good. But the Evangelist does not indicate that he now first heard the Gospel here, but that he heard it somewhere, it matters not where. For he says: “God be merciful to me a sinner.” This knowledge is above the powers of reason. And yet it must previously have been known to him that God is merciful, gracious and friendly to all those who confess their sins, who call upon him and long for grace. As he heard that God is gracious by virtue of his very nature, to all those who humble themselves and seek comfort in him. But to preach thus is always the pure Gospel.
6. Hence the beginning of goodness or godliness is not in us, but in the Word of God. God must first let his Word sound in our hearts by which we learn to know and to believe him, and afterwards do good works.
