R. Elazar b. Abina said further: "Much more is said [regarding the actions] of Michael than is said of Gabriel; for in describing Michael, it is written (Is. 6, 6.) Then flew unto me one of the Seraphim. Whereas in describing Gabriel it is written (Dan. 9:21) The man Gabriel whom I had seen in the vision at the beginning, came flying swiftly." And whence do we know that the word Echad (one) [mentioned by Isaiah] refers to Michael ? R. Jochanan said : "We derive it from the word Echad which occurs in both passages; it is written here (Is. 6, 6.) One of the Seraphim and it is written there (Dan. 10:13) But Michael, one of the chief princes, came to help me. [Just as in the latter case] the word Echad (one) is applied to Michael, so also in the former case does Echad (one) apply to Michael]." In a Baraitha it was taught : "Michael [reaches his destination] with one [flight] ; Gabriel with two; Elijah with four and the angel of death with eight ; but during an epidemic the angel of death reaches [his destination] with one [flight]."