'Babies' in the Bible

But the midwives feared God [with profound reverence] and did not do as the king of Egypt commanded, but they let the boy babies live.

The midwives answered Pharaoh, “Because the Hebrew women are not like the Egyptian women; they are vigorous and give birth quickly and their babies are born before the midwife can get to them.”

They say “To whom would He teach knowledge?And to whom would He explain the message?Those just weaned from milk?Those just taken from the breast?