5 And when he had eagerly sent Him forth and He had come forth from his realm, He left with him, as a poison, the promise of life; that little by little his power should be done away. Even as when a man has taken a poison in the food which is given for (the support of) life, when he perceives in himself that he has received poison in the food, then he casts up again from his belly the food in which poison was mingled; but the drug leaves its power in his limbs, so that little by little the structure of his body is dissolved and corrupted. So Jesus dead was the bringer to nought of Death; for through Him life is made to reign, and through Him Death is abolished, to whom it is said:— O Death, where is your victory?
Source: Demonstrations (New Advent)