Exodus 1:18-22

So the king of Egypt called the midwives and said to them, “Why have you done this, and let the male children live?” The midwives said to Pharaoh, “Because the Hebrew women are not like the Egyptian women, for they are vigorous and give birth before the midwife comes to them.” So God dealt well with the midwives. And the people multiplied and grew very strong. And because the midwives feared God, he gave them families. Then Pharaoh commanded all his people, “Every son that is born to the Hebrews you shall cast into the Nile, but you shall let every daughter live.”