11 But that it may be more manifestly and fully known how useful and necessary patience is, beloved brethren; let the judgment of God be pondered, which even in the beginning of the world and of the human race, Adam, forgetful of the commandment, and a transgressor of the given law, received. Then we shall know how patient in this life we ought to be who are born in such a state, that we labour here with afflictions and contests. “Because,” says He, “you have hearkened to the voice of your wife, and hast eaten of the tree of which alone I had charged you that you should not eat, cursed shall be, the ground in all your works: in sorrow and in groaning shall you eat of it all the days of your life.
Thorns and thistles shall it give forth to you, and you shall eat the food of the field. In the sweat of your face shall you eat your bread, till you return into the ground from which you were taken: for dust you are, and to dust shall you go.” We are all tied and bound with the chain of this sentence, until, death being expunged, we depart from this life. In sorrow and groaning we must of necessity be all the days of our life: it is necessary that we eat our bread with sweat and labour.
Source: The Treatises of Cyprian (New Advent)