Midrasch zu Jeschijahu 51:14

R. Joshua b. Levi said: "At the time the Holy One, praised be He! said to Adam (Gen. 3, 18), And thorns and thistles shall it (the earth) bring forth to the, tears flowed from his eyes. He said: 'Sovereign of the Universe!' shall I and my ass eat of the same crib?' But as soon as he heard that God said (Ib. ib., 19) By the sweat of thy brow shalt thou eat bread, he immediately felt relieved." "We are lucky," remarked Resh Lakish, "that we did not suffer our original doom." Abaye said: "Nevertheless, we have not yet escaped from the first [doom], for there are a number of herbs that we still eat [raw, just as animals eat them]." R. Shizbi, in the name of R. Elazar b. Azaria, said: "Providential support of man is as difficult as the splitting of the Red Sea, for it is said (Is. 51, 14) The exiled will be speedily set free, and he shall not die in the dungeon, and his bread shall not fail; and nearby is written. For I am the Lord, thy God, who stirreth up the sea that its waves roar."