41 They have blasphemed the change of Christ; but what do you answer? “The blessing of the Lord for evermore. Amen and Amen”. Thanks to His mercy, thanks to His grace. We express our thanks: we do not give them, nor return them, nor repay them: we express our thanks in words, while in fact we retain our sense of them. He saved us for no reward, He heeded not our impieties: He searched us out when we searched not for Him, He found, redeemed, emancipated us from the bondage of the devil and the power of his wicked angels: He drew us to Him to purify us by that faith, from which He releases those enemies only who believe not, and who for that reason cannot be purified.
Let those who still remain infidels say every day what they choose; day by day they shall be fewer and fewer that remain; let them revile, mock, accuse, not the death, but the change of Christ. Do they not see that, when they say these things, they fail in purpose either by believing or by dying? For their curse is temporal: but the blessing of the Lord “for evermore.” To confirm that blessing is added, “Amen and Amen.” This is the signature of the bond of God. Secure then of His promises, let us believe the past, recognise the present, hope for the future.
Let not the enemy lead us astray from the way, that He, who gathers us like chickens under His wings, may foster us: lest we stray from His wings, and the hawk of the air carry us off while yet unfledged. For the Christian ought not to hope in himself: if he hopes to be strong, let him be reared by his mother's warmth. This is the hen who gathers her young together; whence is the reproach of our Saviour against the unbelieving Jerusalem. “Behold, your house shall be left unto you desolate.” Hence was it said, “You have made his strongholds a terror.”
Since then they would not be gathered together under the wings of this hen, and have given as a warning to teach us to dread the unclean spirits that fly in the air, seeking daily what they may devour; let us gather ourselves under the wings of this hen, the divine Wisdom, since she is weakened even unto death of her chickens. Let us love our Lord God, let us love His Church: Him as a Father, Her as a Mother: Him as a Lord, Her as His Handmaid, as we are ourselves the Handmaid's sons.
But this marriage is held together by a bond of great love: no man offends the one, and wins favour of the other. Let no man say, “I go indeed to the idols, I consult possessed ones and fortune-tellers: yet I abandon not God's Church; I am a Catholic.” While you hold to your Mother, you have offended your Father. Another says, Far be it from me; I consult no sorcerer, I seek out no possessed one, I never ask advice by sacrilegious divination, I go not to worship idols, I bow not before stones; though I am in the party of Donatus.
What does it profit you not to have offended your Father, if he avenges your offended Mother? What does it serve you, if you acknowledge the Lord, honour God, preach His name, acknowledge His Son, confess that He sits by His right hand; while you blaspheme His Church? Does not the analogy of human marriages convince you? Suppose you have some patron, whom you court every day, whose threshold you wear with your visits, whom you daily not only salute, but even worship, to whom you pay the most loyal courtesy; if you utter one calumny against his wife, could you re-enter his house?
Hold then, most beloved, hold all with one mind to God the Father, and the Church our Mother. Celebrate with temperance the birthdays of the Saints, that we may imitate those who have gone before us, and that they who pray for you may rejoice over you; that “the blessing of the Lord may abide on you for evermore. Amen and Amen.”
Source: The Enarrations, or Expositions, on the Psalms (New Advent)