Why then do you harden your hearts, as the Egyptians and Pharaoh hardened their hearts? When he had worked wonderfully among them, didn't they let the people go, and they departed?
Actually it should read, "Of the city, or of the people of fifty thousand, seventy were slain, seventy men were slain." In other words, of that population of the area, approximately fifty thousand people, seventy of them were slain.