(Moses) put his hand into his bosom, and brought it forth leprous like snow, and the magicians also put their hands in their bosoms, and brought them forth leprous like snow. But they were not healed till the day of their death. Every plague which the Holy One, blessed be He, brought upon them, they also produced every plague until He brought upon them the boils, and they were not able to stand and to do likewise, as it is said, "And the magicians could not stand before Moses because of the boils" (Ex. 9:11).