Twentieth-century Cardinal Jean Danielou explains: "Andreas of Caesarea tells us that Papias taught that God had conferred on certain angels the task of administering the Earth, and that they betrayed that trust." In the 3rd century, Origen of Alexandria (c. 184 - c. 253) taught in his "Homily on Genesis" that there were two creations in Gen. 1:1 and Gen. 1:2, and a time gap between the two; the first involved a spiritual realm, the second a physical realm, although he was not exactly sure what the prior creation was. St. Jerome (c. 347 - 420) wrote that Origen taught that a world existed before our own, and another will exist thereafter, and so on, in constant succession.