Roman Catechism 38.8

Chapter 38 — Part IV: Prayer — The Fourth Petition: Give Us This Day Our Daily Bread

Section 8. Without God's Help Man's Labor Is Vain — Our condition, therefore, is entirely different from what his and that of his posterity would have been, had Adam listened to the voice of God. All things have been thrown into disorder, and have changed sadly for the worse. Of the resultant evils, this is not the least, that the heaviest cost, and labor, and toil, are frequently expended in vain; either because the crops are unproductive, or because the fruits of the earth are smothered by noxious weeds that spring up about them, or perish when stricken and prostrated by heavy rains, storms, hail, blight or blast. Thus is the entire labor of the year quickly reduced to nothing by some calamity of air or soil, inflicted in punishment of our crimes, which provoke the wrath of God and prevent Him from blessing our efforts. The dreadful sentence pronounced against us in the beginning remains.