9 “But who,” one may say, “will be able thus to bruise his own heart?” Listen to David, who became illustrious chiefly because of this, and see the contrition of his soul. How after ten thousand good works, and when he was on the point of being deprived of country, and home, and life itself, at the very season of his calamity, seeing a vile and outcast common soldier trample on the turn of his fortunes and revile him; so far from reviling him again, he utterly forbad one of his captains, who was desirous to have slain him, saying, “Let him alone, for the Lord has bidden him.” And again, when the priests desired to carry about the ark of God with him, he did not permit it; but what does he say? “Let me set it down in the temple, and if God deliver me from the dangers that are before me, I shall see the beauty thereof; but if He say to me, I have no delight in you, behold, here am I, let Him do to me as seems good unto Him.” And that which was done with regard to Saul, again and again, even oftentimes, what excellence of self-restraint does it not show? Yea, for he even surpassed the old law, and came near to the apostolic injunctions. For this cause he bore with contentedness all that came from the Lord's hands; not contending against what befell him, but aiming at one object alone, namely, in everything to obey, and follow the laws set by Him. And when after so many noble deeds on his part, he saw the tyrant, the parricide, the murderer of his own brother, that injurious, that frenzied one, possessing in his stead his own kingdom, not even so was he offended. But “if this please God,” says he, “that I should be chased, and wander, and flee, and that he should be in honor, I acquiesce, and accept it, and do thank God for His many afflictions.” Not like many of the shameless and impudent ones, who when they have not done, no not the least part of his good works, yet if they see any in prosperity, and themselves enduring a little discouragement, ruin their own souls by ten thousand blasphemies. But David was not such an one; rather he showed forth all modesty. Wherefore also God said, “I have found David, the son of Jesse, a man after my own heart.”
Such a spirit as this let us too acquire, and whatever we may suffer we shall bear it easily, and before the Kingdom, we shall reap here the gain accruing from lowliness of mind. Thus “learn,” says He, “of me, for I am meek and lowly in heart, and you shall find rest unto your souls.” Therefore in order that we may enjoy rest both here and hereafter, let us with great diligence implant in our souls the mother of all things that are good, I mean humility. For thus we shall be enabled both to pass over the sea of this life without waves, and to end our voyage in that calm harbor; by the grace and love towards man of our Lord Jesus Christ, to whom be glory and might for ever and ever. Amen.
Source: Homilies on the Gospel of St. Matthew (New Advent)