Midrasch zu Schemot 9:11

(Exod. 30:12): WHEN YOU TAKE A CENSUS <…, EACH SHALL GIVE A RANSOM FOR HIS LIFE…,> SO THAT NO PLAGUE COME UPON THEM. When Moses heard this, he was afraid, and said (as Job. 2:4): SKIN FOR SKIN! ALL THAT ONE HAS HE WILL GIVE FOR HIS LIFE.¹⁸Tanh., Exod. 9:11; cf. below, Numb. 2:19. R. Judah b. R. Il'ay said: Moses said: We have already found that a ransom for a person's life is a talent of silver. It is so stated (in I Kings 20:39): IT WILL BE YOUR LIFE FOR HIS LIFE OR YOU WILL PAY A TALENT [OF SILVER]. R. Johanan said: From whom did he learn <about the ransom >? From the one who commits libel. Thus it is stated (concerning the man who commits libel against his virgin bride in Deut. 22:19): AND THEY SHALL FINE HIM A HUNDRED <SHEKELS OF> SILVER. Now we have committed libel against the Holy One¹⁹PR 10:12. and said (of the golden calf in Exod. 32:4): THIS IS YOUR GOD, O ISRAEL. <Therefore,> each and every one of us must give a hundred <shekels> of silver. Resh Laqish said: Moses learned <about the ransom> from <the law concerning > the rapist. It is written (concerning the rapist in Deut. 22:29): THE MAN WHO LAY WITH HER SHALL GIVE [TO THE YOUNG WOMAN'S FATHER FIFTY <SHEKELS OF> SILVER]. Now we have raped the <divine> word. Thus it is written (in Exod. 20:3): YOU SHALL HAVE NO [OTHER GODS] <BESIDES ME>; and we have committed idolatry. <Therefore,> each and every one of us must give fifty < shekels of> silver. R. Judah bar Simon said: Moses learned from <the law concerning> a goring bull, since it is stated (in Exod. 21:32): IF A BULL GORES A MALE [OR FEMALE] SLAVE, [HE SHALL GIVE THIRTY SHEKELS OF SILVER TO THE MASTER]. Now we have exchanged his glory for a bull. It is so stated (in Ps. 106:20): THUS THEY EXCHANGED THEIR GLORY FOR THE IMAGE OF A BULL. Does every one of us have to give thirty shekels? The Holy One knew what was in Moses' heart. He said to him: By your life, <the ransom will be> not a talent of silver, not a hundred < shekels of> silver, not fifty shekels of silver, and not thirty shekels, but (as in Exod. 30:13): <EVERYONE WHO IS ENTERED IN THE RECORDS > SHALL GIVE THIS: <A HALF SHEKEL >.

(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).