Luke 18:12

(19. Mor. c. 21.) So it was pride that laid bare to his wily enemies the citadel of his heart, which prayer and fasting had in vain kept closed. Of no use are all the other fortifications, as long as there is one place which the enemy has left defenceless.

It becomes us not only to shun evil, but also to do good; and so after having said, I am not as other men are, extortioners, unjust, adulterers, he adds something by way of contrast, I fast twice in a week. They called the week the Sabbath, (Sabbatho) from the last day of rest. The Pharisees fasted upon the second and fifth day. He therefore set fasting against the passion of adultery, for lust is born of luxury; but to the extortioners and usurists he opposed the payment of tithes; as it follows, I give tithes of all I possess; as if he says, So far am I from indulging in extortion or injuring, that I even give up what is my own.

If you look into his words, you will find that he asked nothing of God. He goes up indeed to pray, but instead of asking God, praises himself, and even insults him that asked. The Publican, on the other hand, driven by his stricken conscience afar off, is by his piety brought near.

Typically, the Pharisee is the Jewish people, who boast of their ornaments because of the righteousness of the law; but the Publican is the Gentiles, who being at a distance from God confess their sins. Of whom the one for His pride returned humbled, the other for his contrition was thought worthy to draw near and be exalted.