Midrasch zu Schemot 1:22

And the king of Egypt said to the midwives, etc. Who are the midwives. Rav says a woman and her daughter in law - Yocheved and Elisheva bat Aminadav. And Rabi Shmuel bar Nachman says a woman and her daughter Yocheved and Miriam. That one of their names was Shifra - she beautified the baby when it would come out full of blood. Puah - that she squirted wine into the babies mouth after it came out of its mother. Another thing, Shifra: that B"Y were fruitful and multiplied under her. Puah: that she would cause the newborn to cry out when it was thought to be stillborn. Another thing, Shifra that she beautified her actions before Hashem Another thing, Puah - that she appeared to B"Y for Hashem - she taught B"Y. Puah - she was insolent (hofi’ah panim) toward Pharaoh and looked down her nose at him. She told him: “Woe to you on the day of judgment, when God will come to demand punishment of you.” Pharaoh immediately became enraged and wanted to kill her. Shifra, that she beautified her daughters words to Paraoh and mollified him and said to him: “Do you take notice of her? She is a baby, and knows nothing” (Ex. Rabbah, loc. cit.). Rav Chanina the son of Rav Yitzchak said: Shifra: that she supported Yisrael for Hashem that for them the world was created that it says, By His breath He made the heavens. In another midrashic account, she was called Puah because of her insolence which, in this depiction, was directed against her father Amram. When Pharaoh ordered the Israelite boys to be cast into the Nile, Amram said: “Shall an Israelite lie with his wife for nothing?” He immediately separated from Jochebed and divorced her. When the Israelites saw this action by Amram, who was the head of the Sanhedrin at the time, they also divorced their wives. Puah told her father: “Father, your decree is harsher than that of Pharaoh! He only decreed against the males, but you have decreed against both the males and the females. It is doubtful whether the decree of the wicked Pharaoh will come to pass, but you are righteous, and so your decree will be fulfilled.” Amram immediately took back his wife, and following his lead, all the other Israelite men did the same. Miriam was accordingly given the name of Puah, since she was insolent (hofi’ah panim) to her father.

(Ex. 1, 22) And Pharaah charged all his people, saying. R. Josi b. R. Chanina said: "This was even a decree for his own people." R. Josi b. R. Chaninah said further: "Three decrees did Pharaoh enact, if he be a son then shall ye kill him. Afterward he decreed, ye shall cast it into the river. And finally he extended his decree even to his own nation."

R. Aha and our sages discussed this verse. Our sages said: He repeated this twice to himself and then He told it to Israel, as it is said: Then did He see it and declare it. This refers to the first time, while He established it, yea, and searched it out alludes to the second time. And after that is written: and unto man He said, etc. R. Aha, however, contended that He considered the matter by Himself four times and then told it to Israel, as it is said: Then did he see it and declare it; He established it, yea, and searched it out, and after that is written: And unto man He said. From whom do you learn this? From Jochebed and Miriam, about whom it is written: And the king of Egypt called for the midwives, and said unto them … ye shall look upon the birthstool; if it be a son (Exod. 1:15–16). Why were they commanded to do that? Because the astrologers had told him: “The redeemer of Israel will be born on that day, but we do not know whether he will be born to an Egyptian woman or an Israelite.” At the time he assembled every Egyptian and said to them: “Loan me your sons for a day,” as is said: Every son that is born ye shall cast (ibid., v. 22). It does not say “every child of an Israelite” but rather: Every son that is born, whether Egyptian or Israelite, ye shall cast into the river.